diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..c6d1f23
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,59 @@
+name: Tests
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+      - '.github/workflows/claude*.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  backend:
+    name: Backend Tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v4
+        with:
+          enable-cache: true
+
+      - name: Set up Python
+        run: uv python install
+
+      - name: Install dependencies
+        run: uv sync
+
+      - name: Run tests
+        run: uv run pytest tests/ -v
+
+  frontend:
+    name: Frontend Tests
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: frontend
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: npm
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test
diff --git a/frontend/src/lib/locales/en-US/index.ts b/frontend/src/lib/locales/en-US/index.ts
index 0c3c36e..e02bc17 100644
--- a/frontend/src/lib/locales/en-US/index.ts
+++ b/frontend/src/lib/locales/en-US/index.ts
@@ -36,22 +36,16 @@ export const enUS = {
     warning: "Warning",
     error: "Error",
     success: "Success",
-    sessions: "Sessions",
     model: "Model",
-    send: "Send",
     back: "Back",
     next: "Next",
     done: "Done",
     processing: "Processing...",
     creating: "Creating...",
-    tokenCount: "Tokens",
-    charCount: "Chars",
     linked: "Linked",
-    added: "Added on {date}",
     adding: "Adding...",
     addSelected: "Add Selected",
     customModel: "Custom Model",
-    messages: "Messages",
     failed: "failed",
     current: "Current",
     save: "Save",
@@ -72,7 +66,6 @@ export const enUS = {
     unknown: "Unknown",
     notes: "Notes",
     chat: "Chat",
-    details: "Details",
     deleteForever: "Delete Forever",
     connectionError: "Connection Error",
     unableToConnect: "Unable to connect to the API server",
@@ -85,7 +78,6 @@ export const enUS = {
     checkConsoleLogs: "Check browser console for detailed logs (look for 🔧 [Config] messages)",
     yes: "Yes",
     no: "No",
-    simple: "Simple",
     saving: "Saving...",
     description: "Description",
     saveToNote: "Save to note",
@@ -103,7 +95,6 @@ export const enUS = {
     nameRequired: "Name is required",
     modelConfiguration: "Model Configuration",
     resetToDefault: "Reset to Default",
-    notFound: "Not found",
     reasoning: "Reasoning",
     searchTerms: "Search Terms",
     strategy: "Strategy",
@@ -112,14 +103,12 @@ export const enUS = {
     notebookLabel: "Notebook: {name}",
     itemNotFound: "This {type} could not be found",
     accessibility: {
-      navigation: "Navigation",
       transformationViews: "Transformation views",
       searchKB: "Ask or search your knowledge base",
       enterQuestion: "Enter your question to ask the knowledge base",
       enterSearch: "Enter search query",
       searchKBBtn: "Search knowledge base",
       podcastViews: "Podcast views",
-      chatSessions: "Chat sessions",
       ytVideo: "YouTube video",
       askResponse: "Ask Response",
       searchNotebooks: "Search notebooks",
@@ -127,7 +116,6 @@ export const enUS = {
     url: "URL",
     errorDetails: "Error Details",
     editTransformation: "Edit Transformation",
-    comingSoon: "Coming soon",
     retry: "Try Again",
     traditionalChinese: "繁體中文",
     portuguese: "Português",
@@ -165,7 +153,6 @@ export const enUS = {
     failedToSendMessage: "Failed to send message",
     unauthorized: "Unauthorized access, please check your password",
     invalidPassword: "Invalid password",
-    missingAuth: "Missing authorization",
     embeddingModelRequired: "This feature requires an embedding model. Please configure one in the Models section.",
     strategyModelNotFound: "Strategy model not found",
     answerModelNotFound: "Answer model not found",
@@ -206,7 +193,6 @@ export const enUS = {
     passwordPlaceholder: "Password",
     signingIn: "Signing in...",
     signIn: "Sign In",
-    unhandledError: "Unhandled error during login",
     connectErrorHint: "Unable to connect to server. Please check if the API is running.",
   },
   navigation: {
@@ -226,7 +212,6 @@ export const enUS = {
     nav: "Navigation",
     language: "Toggle language",
     theme: "Theme",
-    search: "Search",
     ask: "Ask",
   },
   notebooks: {
@@ -248,12 +233,8 @@ export const enUS = {
     keepExclusiveSourcesLabel: "Unlink and keep them",
     activeNotebooks: "Active Notebooks",
     archivedNotebooks: "Archived Notebooks",
-    emptyDescription: "Start by creating your first notebook to organize your research.",
-    noActiveNotebooks: "No active notebooks",
-    noArchivedNotebooks: "No archived notebooks",
     notFound: "Notebook not found",
     notFoundDesc: "The requested notebook does not exist.",
-    noDescription: "No description...",
     updated: "Updated",
     namePlaceholder: "Notebook name",
     addDescription: "Add description...",
@@ -278,10 +259,7 @@ export const enUS = {
     add: "Add Source",
     addNew: "Add New Source",
     addExisting: "Add Existing Source",
-    empty: "No sources yet",
-    emptyDesc: "Add your first source to start building your knowledge base.",
     delete: "Delete Source",
-    deleteMsg: "Are you sure you want to delete this source? This action cannot be undone.",
     statusPreparing: "Preparing",
     statusQueued: "Queued",
     statusProcessing: "Processing",
@@ -321,7 +299,6 @@ export const enUS = {
     sourceRequeued: "Source Retry Queued",
     sourceRequeuedDesc: "The source has been requeued for processing.",
     failedToRetry: "Retry Failed",
-    failedToRetryDesc: "Failed to retry source processing. Please try again.",
     sourcesAddedToNotebook: "{count} source(s) added to notebook",
     failedToAddSourcesToNotebook: "Failed to add sources to notebook",
     partialAddSuccess: "{success} source(s) added, {failed} failed",
@@ -359,34 +336,31 @@ export const enUS = {
     deleteInsight: "Delete Insight",
     deleteInsightConfirm: "Are you sure you want to delete this insight? This action cannot be undone.",
     insightGenerationStarted: "Insight generation started. It will appear shortly.",
-    deleteNoteConfirm: 'Are you sure you want to delete this note? This action cannot be undone.',
-    editNote: 'Edit note',
-    createNote: 'Create note',
-    addTitle: 'Add a title...',
-    untitledNote: 'Untitled Note',
-    writeNotePlaceholder: 'Write your note content here...',
-    saveNote: 'Save Note',
-    createNoteBtn: 'Create Note',
-    noNotesYet: "No notes yet",
+    editNote: "Edit note",
+    createNote: "Create note",
+    addTitle: "Add a title...",
+    untitledNote: "Untitled Note",
+    writeNotePlaceholder: "Write your note content here...",
+    saveNote: "Save Note",
+    createNoteBtn: "Create Note",
     createFirstNote: "Create your first note to capture insights and observations.",
-    deleteNote: "Delete Note",
-    urlLabel: 'URL(s) *',
-    fileLabel: 'File(s) *',
-    textContentLabel: 'Text Content *',
-    enterUrlsPlaceholder: 'Enter URLs, one per line\nhttps://example.com/article1\nhttps://example.com/article2',
-    batchUrlHint: 'Paste multiple URLs (one per line) to batch import',
-    invalidUrlsDetected: 'Invalid URLs detected:',
-    lineLabel: 'Line {line}',
-    fixInvalidUrls: 'Please fix or remove invalid URLs to continue',
-    selectMultipleFilesHint: 'Select multiple files to batch import. Supported: Documents (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD), Media (MP4, MP3, WAV, M4A), Images (JPG, PNG), Archives (ZIP)',
-    selectedFiles: 'Selected files:',
-    textPlaceholder: 'Paste or type your content here...',
-    htmlDetected: 'HTML content detected. It will be converted to Markdown after processing.',
-    titlePlaceholder: 'Give your source a descriptive title',
-    batchTitlesAuto: 'Titles will be automatically generated for each source.',
-    batchCommonSettings: 'The same notebooks and transformations will be applied to all items.',
-    urlsCount: '{count} URL(s)',
-    filesCount: '{count} file(s)',
+    urlLabel: "URL(s) *",
+    fileLabel: "File(s) *",
+    textContentLabel: "Text Content *",
+    enterUrlsPlaceholder: "Enter URLs, one per line\nhttps://example.com/article1\nhttps://example.com/article2",
+    batchUrlHint: "Paste multiple URLs (one per line) to batch import",
+    invalidUrlsDetected: "Invalid URLs detected:",
+    lineLabel: "Line {line}",
+    fixInvalidUrls: "Please fix or remove invalid URLs to continue",
+    selectMultipleFilesHint: "Select multiple files to batch import. Supported: Documents (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD), Media (MP4, MP3, WAV, M4A), Images (JPG, PNG), Archives (ZIP)",
+    selectedFiles: "Selected files:",
+    textPlaceholder: "Paste or type your content here...",
+    htmlDetected: "HTML content detected. It will be converted to Markdown after processing.",
+    titlePlaceholder: "Give your source a descriptive title",
+    batchTitlesAuto: "Titles will be automatically generated for each source.",
+    batchCommonSettings: "The same notebooks and transformations will be applied to all items.",
+    urlsCount: "{count} URL(s)",
+    filesCount: "{count} file(s)",
     addSource: "Add Source",
     notEmbeddedAlert: "Content Not Embedded",
     notEmbeddedDesc: "This content hasn't been embedded for vector search. Embedding enables advanced search capabilities and better content discovery.",
@@ -403,7 +377,6 @@ export const enUS = {
     retryProcessing: "Retry Processing",
     deleteSource: "Delete Source",
     retry: "Retry",
-    progress: "Progress",
     addExistingTitle: "Add Existing Sources",
     addExistingDesc: "Select existing sources from across all your notebooks to add to the current one.",
     searchPlaceholder: "Search sources by name or URL...",
@@ -435,8 +408,6 @@ export const enUS = {
     batchFailed: "Failed to create all {count} sources",
     batchPartial: "{success} succeeded, {failed} failed",
     submittingSource: "Submitting source for processing...",
-    contentRequired: "Please provide the required content for the selected source type",
-    titleRequiredForText: "Title is required for text sources",
     processingBatchSources: "Processing {count} sources. This may take a few moments.",
     processingSource: "Your source is being processed. This may take a few moments.",
     maxFilesAllowed: "Maximum {count} files allowed per batch",
@@ -445,26 +416,20 @@ export const enUS = {
     sessions: "Sessions",
     sessionTitlePlaceholder: "Type a title here...",
     noSessions: "No chat sessions yet",
-    startChatting: "Start chatting about your sources.",
     deleteSession: "Delete Session",
     deleteSessionDesc: "Are you sure you want to delete this chat session? This action cannot be undone.",
     sendPlaceholder: "Ask anything about your sources...",
-    newChat: "New Chat",
     sessionsTitle: "Chat Sessions",
-    clearhistory: "Clear History",
-    renameSession: "Rename Session",
-    noSourcesLinked: "No sources linked",
-    thinking: "AI is thinking...",
     chatWith: "Chat with {name}",
     startConversation: "Start a conversation about this {type}",
     askQuestions: "Ask questions to understand the content better",
     pressToSend: "Press {key} to send",
     model: "Model",
-    createToStart: 'Create a session to start.',
-    chatWithNotebook: 'Chat with Notebook',
-    unableToLoadChat: 'Unable to load chat',
-    noDescription: 'No description',
-    startByCreating: 'Start by creating your first notebook to organize your research.',
+    createToStart: "Create a session to start.",
+    chatWithNotebook: "Chat with Notebook",
+    unableToLoadChat: "Unable to load chat",
+    noDescription: "No description",
+    startByCreating: "Start by creating your first notebook to organize your research.",
     messagesCount: "{count} messages",
     sessionCreated: "Chat session created",
     sessionUpdated: "Session updated",
@@ -508,8 +473,6 @@ export const enUS = {
     saveSuccess: "Successfully saved to notebook",
     saveError: "Failed to save to notebook",
     selectNotebook: "Select Notebook",
-    createNewNotebook: "Create New Notebook",
-    cancel: "Cancel",
     searchAndAsk: "Search & Ask",
     searchResultsFor: "Search results for “{query}”",
     askAbout: "Ask about “{query}”",
@@ -734,8 +697,6 @@ export const enUS = {
     speakerCountMin: "At least one speaker is required",
     speakerCountMax: "You can configure up to 4 speakers",
     delete: "Delete",
-    unknown: "Unknown",
-    deleteSuccess: "Podcast deleted successfully",
     failedToDelete: "Failed to delete podcast",
   },
   settings: {
@@ -772,13 +733,8 @@ export const enUS = {
     title: "AdvancedTools",
     desc: "Advanced tools and utilities for power users",
     systemInfo: "System Info",
-    systemInfoDesc: "View the status of underlying system components",
     rebuildEmbeddings: "Rebuild Embeddings",
     rebuildEmbeddingsDesc: "Rebuild vector search index for all sources",
-    rebuildWarning: "This action can be very time-consuming depending on the number of sources you have. It will clear existing vector indices and re-generate embeddings for everything.",
-    startRebuild: "Start Rebuild",
-    rebuilding: "Rebuilding...",
-    rebuildSuccess: "Embedding rebuild started successfully",
     currentVersion: "Current Version",
     latestVersion: "Latest Version",
     status: "Status",
@@ -823,105 +779,53 @@ export const enUS = {
     defaultPrompt: "Default Transformation Prompt",
     defaultPromptDesc: "This will be added to all your transformation prompts",
     defaultPromptPlaceholder: "Enter your default transformation instructions...",
-    saveDefault: "Save Default",
     listTitle: "Custom Transformations",
     createNew: "Create New",
-    testInPlayground: "Test in Playground",
     inputLabel: "Input Text",
-    inputPlaceholder: 'Enter some text to transform...',
-    outputLabel: 'Output',
-    runTest: 'Run Transformation',
-    running: 'Running...',
-    selectToStart: 'Select a transformation to start',
-    name: 'Name',
-    namePlaceholder: 'Unique identifier, e.g. key_topics',
-    titlePlaceholder: 'Displayed title, defaults to name',
-    promptPlaceholder: 'Write the prompt that will power this transformation...',
-    descriptionPlaceholder: 'Describe what this transformation does.',
-    suggestDefault: 'Suggest by default on new sources',
-    promptHint: 'Prompts should be written with the source content in mind. You can ask the model to summarise, extract insights, or produce structured outputs such as tables.',
-    createSuccess: 'Transformation created successfully',
-    updateSuccess: 'Transformation updated successfully',
-    deleteSuccess: 'Transformation deleted successfully',
+    inputPlaceholder: "Enter some text to transform...",
+    outputLabel: "Output",
+    runTest: "Run Transformation",
+    running: "Running...",
+    selectToStart: "Select a transformation to start",
+    name: "Name",
+    namePlaceholder: "Unique identifier, e.g. key_topics",
+    titlePlaceholder: "Displayed title, defaults to name",
+    promptPlaceholder: "Write the prompt that will power this transformation...",
+    descriptionPlaceholder: "Describe what this transformation does.",
+    suggestDefault: "Suggest by default on new sources",
+    promptHint: "Prompts should be written with the source content in mind. You can ask the model to summarise, extract insights, or produce structured outputs such as tables.",
+    createSuccess: "Transformation created successfully",
+    updateSuccess: "Transformation updated successfully",
+    deleteSuccess: "Transformation deleted successfully",
     noTransformations: "No transformations yet",
     createOne: "Create a transformation to get started",
-    deleteDesc: "Deleting this transformation cannot be undone.",
     selectModel: "Select a model",
     deleteConfirm: "Are you sure you want to delete this transformation?",
     model: "Model",
     systemPrompt: "System Prompt",
-    type: "Type",
-    extraction: "Extraction",
-    summary: "Summary",
-    custom: "Custom",
-    saveChanges: "Save Changes",
     overrideModelDesc: "Override the default model for this chat session. Leave empty to use the system default.",
     sessionUseReplacement: "This session will use {name} instead of the default model.",
     systemDefault: "System Default",
   },
   models: {
-    title: "Model Management",
-    desc: "Configure AI models for different purposes across Open Notebook",
-    failedToLoad: "Failed to load models data",
-    language: "Language Models",
     embedding: "Embedding Models",
     tts: "Text to Speech (TTS)",
     stt: "Speech to Text (STT)",
-    providers: "Providers",
-    defaultModels: "Default Models",
-    status: "Status",
-    notConfigured: "Not configured",
-    active: "Active",
-    inactive: "Inactive",
-    configure: "Configure",
-    saveChanges: "Save Changes",
-    addModel: "Add Model",
-    modelName: "Model Name",
     provider: "Provider",
     apiKey: "API Key",
-    baseUrl: "Base URL",
-    capabilities: "Capabilities",
-    enabled: "Enabled",
-    disabled: "Disabled",
-    deleteConfirm: "Are you sure you want to delete this model?",
     deleteSuccess: "Model deleted successfully",
     saveSuccess: "Model saved successfully",
-    providerStatus: "Provider Status",
-    connectionOk: "Connection OK",
-    connectionFailed: "Connection failed",
-    changeEmbeddingWarning: "Changing the default embedding model will affect new sources. Existing sources might need to be re-indexed.",
-    changeEmbeddingTitle: "Change Default Embedding Model?",
-    aiProviders: "AI Providers",
-    providerConfigDesc: "Configure providers through environment variables to enable their models.",
-    configuredCount: "{count} of {total} configured",
     noModels: "No models",
-    learnMore: "Learn how to configure providers →",
-    seeLess: "See less",
-    seeAll: "See all {count} providers",
-    language_models: "Language Models",
-    embedding_models: "Embedding Models",
-    text_to_speech: "Text to Speech (TTS)",
-    speech_to_text: "Speech to Text (STT)",
-    languageDesc: "Chat, transformations, and text generation",
-    embeddingDesc: "Semantic search and vector embeddings",
-    ttsDesc: "Generate audio from text",
-    sttDesc: "Transcribe audio to text",
-    all: "All",
-    noModelsConfigured: "No models configured",
-    noProviderModelsConfigured: "No {provider} models configured",
-    showMore: "Show {count} more",
     discoverModels: "Discover Models",
     noModelsFound: "No models found from this provider",
     modelType: "Model Type",
     modelTypeHint: "Select the type for the models you want to add. If you need different types, add them in separate batches.",
     deleteModel: "Delete Model",
-    deleteModelDesc: "Are you sure you want to delete \"{name}\"? This action cannot be undone.",
     defaultAssignments: "Default Model Assignments",
     defaultAssignmentsDesc: "Configure which models to use for different purposes across Open Notebook",
     missingRequiredModels: "Missing required models: {models}. Open Notebook may not function properly without these.",
     selectModelPlaceholder: "Select a model",
     requiredModelPlaceholder: "⚠️ Required - Select a model",
-    whichModelToChoose: "Which model should I choose? →",
     chatModelLabel: "Chat Model",
     chatModelDesc: "Used for chat conversations",
     transformationModelLabel: "Transformation Model",
@@ -936,16 +840,9 @@ export const enUS = {
     ttsModelDesc: "Used for podcast generation",
     sttModelLabel: "Speech-to-Text Model",
     sttModelDesc: "Used for audio transcription",
-    addSpecificModel: "Add {type} Model",
-    addSpecificModelDesc: "Configure a new {type} model from available providers.",
-    noProvidersForType: "No providers available for {type} models",
     selectProviderPlaceholder: "Select a provider",
     providerRequired: "Provider is required",
-    modelNameRequired: "Model name is required",
     modelRequired: "Model is required",
-    adding: "Adding...",
-    azureHint: "For Azure, use the deployment name as the model name",
-    enterModelName: "Enter model name",
     embeddingChangeTitle: "Embedding Model Change",
     embeddingChangeConfirm: "You are about to change your embedding model from {from} to {to}.",
     rebuildRequired: "Important: Rebuild Required",
@@ -959,7 +856,6 @@ export const enUS = {
     changeModelOnly: "Change Model Only",
     changeAndRebuild: "Change & Go to Rebuild",
     autoAssign: "Auto-assign Defaults",
-    autoAssignDesc: "Automatically assign the best available model for each slot",
     autoAssigning: "Assigning...",
     autoAssignSuccess: "{count} default models automatically assigned",
     autoAssignNoModels: "No models available to assign. Please sync models first.",
@@ -967,25 +863,16 @@ export const enUS = {
     testModel: "Test Model",
     testModelSuccess: "Model Test Passed",
     testModelFailed: "Model Test Failed",
-    testingModel: "Testing model...",
     searchOrAddModel: "Search or type a model name...",
-    addCustomModel: 'Add "{name}"',
+    addCustomModel: "Add \"{name}\"",
   },
   apiKeys: {
     title: "Configure your AI with your own API keys",
     description: "Store API keys securely in the database to enable AI providers in Open Notebook.",
-    loadFailed: "Failed to load API keys status",
     encryptionRequired: "Encryption key not configured",
     encryptionRequiredDescription: "Set the OPEN_NOTEBOOK_ENCRYPTION_KEY environment variable to any secret string to enable storing API keys in the database.",
     configured: "Configured",
     notConfigured: "Not configured",
-    sourceDatabase: "Database",
-    sourceEnvironment: "Environment",
-    enterApiKey: "Enter your API key",
-    enterBaseUrl: "Enter the base URL",
-    saveSuccess: "API key saved successfully",
-    deleteSuccess: "API key deleted successfully",
-    fromEnvironmentHint: "This key is set via environment variable. Save a new key to override it in the database.",
     migrationAvailable: "Environment Variables Detected",
     migrationDescription: "{count} API key(s) are configured via environment variables and can be migrated to the database for easier management.",
     migrateToDatabase: "Migrate to Database",
@@ -993,67 +880,29 @@ export const enUS = {
     migrationSuccess: "{count} API key(s) migrated successfully",
     migrationErrors: "{count} key(s) failed to migrate",
     migrationNothingToMigrate: "All keys are already in the database",
-    serviceType: "Service Type",
-    serviceLlm: "Language Model (LLM)",
-    serviceEmbedding: "Embedding",
-    serviceStt: "Speech to Text (STT)",
-    serviceTts: "Text to Speech (TTS)",
-    serviceEndpoints: "Service Endpoints (optional)",
-    azureEndpointsHint: "Configure different endpoints for each service type if needed.",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "Configure an OpenAI-compatible API endpoint. Each service type can have its own configuration.",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "Learn how to configure API keys →",
     testConnection: "Test Connection",
-    testing: "Testing...",
     testSuccess: "Connection successful",
     testFailed: "Connection test failed",
     syncModels: "Sync Models",
-    syncing: "Syncing...",
     syncSuccess: "Discovered {discovered} models, added {new} new",
     syncNoNew: "Discovered {count} models, all already registered",
     syncFailed: "Failed to sync models",
-    syncAllModels: "Sync All Providers",
-    syncAllSuccess: "Discovered {discovered} models across all providers, added {new} new",
-    modelsConfigured: "{count} models",
-    noModelsConfigured: "No models",
-    viewModels: "View Models",
-    supportedTypes: "Supported types",
-    typeLanguage: "Language",
-    typeEmbedding: "Embedding",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "API Endpoint",
     getApiKey: "Get API Key",
     vertexProject: "GCP Project ID",
     vertexLocation: "Region",
     vertexCredentials: "Service Account JSON Path",
-    vertexCredentialsHint: "Path to your Google Cloud service account JSON file inside the container.",
-
-    // Multi-config translations
-    configsCount: "{count} configs",
-    configuredMultiple: "Configured",
     addConfig: "Add Configuration",
     editConfig: "Edit Configuration",
     deleteConfig: "Delete Configuration",
-    setAsDefault: "Set as Default",
-    defaultBadge: "Default",
-    defaultDescription: "Default configuration for this provider",
     configName: "Configuration Name",
     configNameHint: "A descriptive name for this configuration (e.g., 'Production', 'Development')",
     baseUrl: "Base URL",
-    baseUrlHint: "Default: {url}",
     baseUrlOverrideHint: "Only change this if you need to override the provider's default API endpoint.",
-    ollamaApiKeyHint: "Only required for Ollama Cloud. Leave empty for local Ollama.",
-    noConfigs: "No configurations yet",
-    noConfigsHint: "Add a configuration to start using this provider",
     deleteConfigConfirm: "Are you sure you want to delete '{name}'? This cannot be undone.",
-    setDefaultConfirm: "Set '{name}' as the default configuration?",
     configSaveSuccess: "Configuration saved successfully",
     configUpdateSuccess: "Configuration updated successfully",
     configDeleteSuccess: "Configuration deleted successfully",
-    configSetDefaultSuccess: "Default configuration updated",
-    apiKeyHint: "Enter your API key for this configuration",
     apiKeyEditHint: "Leave blank to keep the existing API key",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/index.test.ts b/frontend/src/lib/locales/index.test.ts
index 731710f..11d760d 100644
--- a/frontend/src/lib/locales/index.test.ts
+++ b/frontend/src/lib/locales/index.test.ts
@@ -1,56 +1,68 @@
 import { describe, it, expect } from 'vitest'
+import fs from 'fs'
+import path from 'path'
+import { resources } from './index'
 import { enUS } from './en-US'
-import { zhCN } from './zh-CN'
-import { zhTW } from './zh-TW'
-import { jaJP } from './ja-JP'
-import { ruRU } from './ru-RU'
 
-describe('Internationalization Locales Integrity', () => {
-  const getKeys = (obj: Record<string, unknown>, prefix = ''): string[] => {
-    return Object.keys(obj).reduce((res: string[], el) => {
-      const val = obj[el]
-      if (typeof val === 'object' && val !== null && !Array.isArray(val)) {
-        return [...res, ...getKeys(val as Record<string, unknown>, prefix + el + '.')]
-      }
-      return [...res, prefix + el]
-    }, [])
-  }
+const getKeys = (obj: Record<string, unknown>, prefix = ''): string[] => {
+  return Object.keys(obj).reduce((res: string[], el) => {
+    const val = obj[el]
+    if (typeof val === 'object' && val !== null && !Array.isArray(val)) {
+      return [...res, ...getKeys(val as Record<string, unknown>, prefix + el + '.')]
+    }
+    return [...res, prefix + el]
+  }, [])
+}
 
+describe('Locale Parity', () => {
   const enKeys = getKeys(enUS)
-  const zhCNKeys = getKeys(zhCN)
-  const zhTWKeys = getKeys(zhTW)
-  const jaJPKeys = getKeys(jaJP)
-  const ruRUKeys = getKeys(ruRU)
 
-  it('zh-CN should have the same keys as en-US', () => {
-    const missingInZhCN = enKeys.filter(key => !zhCNKeys.includes(key))
-    const extraInZhCN = zhCNKeys.filter(key => !enKeys.includes(key))
+  const locales = Object.entries(resources).filter(([code]) => code !== 'en-US')
 
-    expect(missingInZhCN, `Missing keys in zh-CN: ${missingInZhCN.join(', ')}`).toEqual([])
-    expect(extraInZhCN, `Extra keys in zh-CN: ${extraInZhCN.join(', ')}`).toEqual([])
-  })
+  it.each(locales.map(([code, resource]) => [code, resource] as const))(
+    '%s should have the same keys as en-US',
+    (code, resource) => {
+      const localeKeys = getKeys(resource.translation as Record<string, unknown>)
 
-  it('zh-TW should have the same keys as en-US', () => {
-    const missingInZhTW = enKeys.filter(key => !zhTWKeys.includes(key))
-    const extraInZhTW = zhTWKeys.filter(key => !enKeys.includes(key))
+      const missing = enKeys.filter(key => !localeKeys.includes(key))
+      const extra = localeKeys.filter(key => !enKeys.includes(key))
 
-    expect(missingInZhTW, `Missing keys in zh-TW: ${missingInZhTW.join(', ')}`).toEqual([])
-    expect(extraInZhTW, `Extra keys in zh-TW: ${extraInZhTW.join(', ')}`).toEqual([])
-  })
-
-  it('ja-JP should have the same keys as en-US', () => {
-    const missingInJaJP = enKeys.filter(key => !jaJPKeys.includes(key))
-    const extraInJaJP = jaJPKeys.filter(key => !enKeys.includes(key))
-
-    expect(missingInJaJP, `Missing keys in ja-JP: ${missingInJaJP.join(', ')}`).toEqual([])
-    expect(extraInJaJP, `Extra keys in ja-JP: ${extraInJaJP.join(', ')}`).toEqual([])
-  })
-
-  it('ru-RU should have the same keys as en-US', () => {
-    const missingInRuRU = enKeys.filter(key => !ruRUKeys.includes(key))
-    const extraInRuRU = ruRUKeys.filter(key => !enKeys.includes(key))
-
-    expect(missingInRuRU, `Missing keys in ru-RU: ${missingInRuRU.join(', ')}`).toEqual([])
-    expect(extraInRuRU, `Extra keys in ru-RU: ${extraInRuRU.join(', ')}`).toEqual([])
-  })
+      expect(missing, `Missing keys in ${code}: ${missing.join(', ')}`).toEqual([])
+      expect(extra, `Extra keys in ${code}: ${extra.join(', ')}`).toEqual([])
+    },
+  )
+})
+
+describe('Unused Key Detection', () => {
+  it(
+    'all en-US leaf keys should be referenced in source files',
+    () => {
+      const srcDir = path.resolve(__dirname, '../../..')
+      const localesDir = path.resolve(__dirname)
+
+      const files = fs.readdirSync(srcDir, { recursive: true }) as string[]
+      const sourceFiles = files.filter(f => {
+        const full = path.join(srcDir, f)
+        if (full.startsWith(localesDir)) return false
+        if (f.endsWith('.test.ts') || f.endsWith('.test.tsx')) return false
+        return f.endsWith('.ts') || f.endsWith('.tsx')
+      })
+
+      // Normalize optional chaining (t?.common?.key → t.common.key)
+      // so that keys like "common.errorDetails" match "common?.errorDetails"
+      const corpus = sourceFiles
+        .map(f => fs.readFileSync(path.join(srcDir, f), 'utf-8'))
+        .join('\n')
+        .replace(/\?\./g, '.')
+
+      const leafKeys = getKeys(enUS)
+      const unused = leafKeys.filter(key => !corpus.includes(key))
+
+      expect(
+        unused,
+        `Found ${unused.length} unused i18n key(s):\n${unused.join('\n')}`,
+      ).toEqual([])
+    },
+    30_000,
+  )
 })
diff --git a/frontend/src/lib/locales/it-IT/index.ts b/frontend/src/lib/locales/it-IT/index.ts
index beaa42f..4dfad9b 100644
--- a/frontend/src/lib/locales/it-IT/index.ts
+++ b/frontend/src/lib/locales/it-IT/index.ts
@@ -23,7 +23,7 @@ export const itIT = {
     english: "English",
     chinese: "简体中文",
     japanese: "日本語",
-    italian: "Italiano",
+    russian: "Русский",
     source: "Fonte",
     notebook: "Quaderno",
     podcast: "Podcast",
@@ -36,22 +36,16 @@ export const itIT = {
     warning: "Attenzione",
     error: "Errore",
     success: "Successo",
-    sessions: "Sessioni",
     model: "Modello",
-    send: "Invia",
     back: "Indietro",
     next: "Avanti",
     done: "Fatto",
     processing: "Elaborazione...",
     creating: "Creazione...",
-    tokenCount: "Token",
-    charCount: "Caratteri",
     linked: "Collegato",
-    added: "Aggiunto il {date}",
     adding: "Aggiunta in corso...",
     addSelected: "Aggiungi selezionati",
     customModel: "Modello personalizzato",
-    messages: "Messaggi",
     failed: "fallito",
     current: "Corrente",
     save: "Salva",
@@ -72,7 +66,6 @@ export const itIT = {
     unknown: "Sconosciuto",
     notes: "Note",
     chat: "Chat",
-    details: "Dettagli",
     deleteForever: "Elimina definitivamente",
     connectionError: "Errore di connessione",
     unableToConnect: "Impossibile connettersi al server API",
@@ -85,7 +78,6 @@ export const itIT = {
     checkConsoleLogs: "Controlla la console del browser per log dettagliati (cerca i messaggi 🔧 [Config])",
     yes: "Sì",
     no: "No",
-    simple: "Semplice",
     saving: "Salvataggio...",
     description: "Descrizione",
     saveToNote: "Salva come nota",
@@ -103,7 +95,6 @@ export const itIT = {
     nameRequired: "Il nome è obbligatorio",
     modelConfiguration: "Configurazione modello",
     resetToDefault: "Ripristina predefinito",
-    notFound: "Non trovato",
     reasoning: "Ragionamento",
     searchTerms: "Termini di ricerca",
     strategy: "Strategia",
@@ -112,14 +103,12 @@ export const itIT = {
     notebookLabel: "Quaderno: {name}",
     itemNotFound: "Questo {type} non è stato trovato",
     accessibility: {
-      navigation: "Navigazione",
       transformationViews: "Viste trasformazioni",
       searchKB: "Chiedi o cerca nella tua base di conoscenza",
       enterQuestion: "Inserisci la tua domanda per interrogare la base di conoscenza",
       enterSearch: "Inserisci la query di ricerca",
       searchKBBtn: "Cerca nella base di conoscenza",
       podcastViews: "Viste podcast",
-      chatSessions: "Sessioni chat",
       ytVideo: "Video YouTube",
       askResponse: "Risposta alla domanda",
       searchNotebooks: "Cerca quaderni",
@@ -127,7 +116,6 @@ export const itIT = {
     url: "URL",
     errorDetails: "Dettagli errore",
     editTransformation: "Modifica trasformazione",
-    comingSoon: "Prossimamente",
     retry: "Riprova",
     traditionalChinese: "繁體中文",
     portuguese: "Português",
@@ -165,7 +153,6 @@ export const itIT = {
     failedToSendMessage: "Impossibile inviare il messaggio",
     unauthorized: "Accesso non autorizzato, controlla la password",
     invalidPassword: "Password non valida",
-    missingAuth: "Autenticazione mancante",
     embeddingModelRequired: "Questa funzionalità richiede un modello di embedding. Configurane uno nella sezione Modelli.",
     strategyModelNotFound: "Modello strategia non trovato",
     answerModelNotFound: "Modello risposta non trovato",
@@ -206,7 +193,6 @@ export const itIT = {
     passwordPlaceholder: "Password",
     signingIn: "Accesso in corso...",
     signIn: "Accedi",
-    unhandledError: "Errore non gestito durante l'accesso",
     connectErrorHint: "Impossibile connettersi al server. Verifica che l'API sia in esecuzione.",
   },
   navigation: {
@@ -226,7 +212,6 @@ export const itIT = {
     nav: "Navigazione",
     language: "Cambia lingua",
     theme: "Tema",
-    search: "Cerca",
     ask: "Chiedi",
   },
   notebooks: {
@@ -248,12 +233,8 @@ export const itIT = {
     keepExclusiveSourcesLabel: "Scollega e mantieni",
     activeNotebooks: "Quaderni attivi",
     archivedNotebooks: "Quaderni archiviati",
-    emptyDescription: "Inizia creando il tuo primo quaderno per organizzare la tua ricerca.",
-    noActiveNotebooks: "Nessun quaderno attivo",
-    noArchivedNotebooks: "Nessun quaderno archiviato",
     notFound: "Quaderno non trovato",
     notFoundDesc: "Il quaderno richiesto non esiste.",
-    noDescription: "Nessuna descrizione...",
     updated: "Aggiornato",
     namePlaceholder: "Nome quaderno",
     addDescription: "Aggiungi descrizione...",
@@ -278,10 +259,7 @@ export const itIT = {
     add: "Aggiungi fonte",
     addNew: "Aggiungi nuova fonte",
     addExisting: "Aggiungi fonte esistente",
-    empty: "Ancora nessuna fonte",
-    emptyDesc: "Aggiungi la tua prima fonte per iniziare a costruire la tua base di conoscenza.",
     delete: "Elimina Fonte",
-    deleteMsg: "Sei sicuro di voler eliminare questa fonte? Questa azione non può essere annullata.",
     statusPreparing: "In preparazione",
     statusQueued: "In coda",
     statusProcessing: "In elaborazione",
@@ -321,7 +299,6 @@ export const itIT = {
     sourceRequeued: "Fonte rimessa in coda",
     sourceRequeuedDesc: "La fonte è stata rimessa in coda per l'elaborazione.",
     failedToRetry: "Nuovo tentativo fallito",
-    failedToRetryDesc: "Impossibile ritentare l'elaborazione della fonte. Riprova.",
     sourcesAddedToNotebook: "{count} fonte/i aggiunte al quaderno",
     failedToAddSourcesToNotebook: "Impossibile aggiungere le fonti al quaderno",
     partialAddSuccess: "{success} fonte/i aggiunte, {failed} fallite",
@@ -358,7 +335,7 @@ export const itIT = {
     viewInsight: "Visualizza approfondimento",
     deleteInsight: "Elimina approfondimento",
     deleteInsightConfirm: "Sei sicuro di voler eliminare questo approfondimento? Questa azione non può essere annullata.",
-    deleteNoteConfirm: "Sei sicuro di voler eliminare questa nota? Questa azione non può essere annullata.",
+    insightGenerationStarted: "Generazione dell'approfondimento avviata. Apparirà a breve.",
     editNote: "Modifica nota",
     createNote: "Crea nota",
     addTitle: "Aggiungi un titolo...",
@@ -366,9 +343,7 @@ export const itIT = {
     writeNotePlaceholder: "Scrivi il contenuto della tua nota qui...",
     saveNote: "Salva nota",
     createNoteBtn: "Crea nota",
-    noNotesYet: "Ancora nessuna nota",
     createFirstNote: "Crea la tua prima nota per catturare intuizioni e osservazioni.",
-    deleteNote: "Elimina nota",
     urlLabel: "URL *",
     fileLabel: "File *",
     textContentLabel: "Contenuto testo *",
@@ -402,7 +377,6 @@ export const itIT = {
     retryProcessing: "Riprova elaborazione",
     deleteSource: "Elimina fonte",
     retry: "Riprova",
-    progress: "Progresso",
     addExistingTitle: "Aggiungi fonti esistenti",
     addExistingDesc: "Seleziona fonti esistenti da tutti i tuoi quaderni per aggiungerle a quello corrente.",
     searchPlaceholder: "Cerca fonti per nome o URL...",
@@ -434,8 +408,6 @@ export const itIT = {
     batchFailed: "Impossibile creare tutte le {count} fonti",
     batchPartial: "{success} riuscite, {failed} fallite",
     submittingSource: "Invio fonte per l'elaborazione...",
-    contentRequired: "Fornisci il contenuto richiesto per il tipo di fonte selezionato",
-    titleRequiredForText: "Il titolo è obbligatorio per le fonti testuali",
     processingBatchSources: "Elaborazione di {count} fonti. Potrebbe richiedere qualche istante.",
     processingSource: "La tua fonte è in elaborazione. Potrebbe richiedere qualche istante.",
     maxFilesAllowed: "Massimo {count} file consentiti per batch",
@@ -444,16 +416,10 @@ export const itIT = {
     sessions: "Sessioni",
     sessionTitlePlaceholder: "Digita un titolo qui...",
     noSessions: "Ancora nessuna sessione chat",
-    startChatting: "Inizia a chattare sulle tue fonti.",
     deleteSession: "Elimina sessione",
     deleteSessionDesc: "Sei sicuro di voler eliminare questa sessione chat? Questa azione non può essere annullata.",
     sendPlaceholder: "Chiedi qualsiasi cosa sulle tue fonti...",
-    newChat: "Nuova chat",
     sessionsTitle: "Sessioni chat",
-    clearhistory: "Cancella cronologia",
-    renameSession: "Rinomina sessione",
-    noSourcesLinked: "Nessuna fonte collegata",
-    thinking: "L'IA sta pensando...",
     chatWith: "Chatta con {name}",
     startConversation: "Inizia una conversazione su questo {type}",
     askQuestions: "Fai domande per capire meglio il contenuto",
@@ -507,8 +473,6 @@ export const itIT = {
     saveSuccess: "Salvato con successo nel quaderno",
     saveError: "Impossibile salvare nel quaderno",
     selectNotebook: "Seleziona quaderno",
-    createNewNotebook: "Crea nuovo quaderno",
-    cancel: "Annulla",
     searchAndAsk: "Cerca e chiedi",
     searchResultsFor: "Risultati di ricerca per \"{query}\"",
     askAbout: "Chiedi riguardo \"{query}\"",
@@ -733,8 +697,6 @@ export const itIT = {
     speakerCountMin: "È richiesto almeno uno speaker",
     speakerCountMax: "Puoi configurare fino a 4 speaker",
     delete: "Elimina",
-    unknown: "Sconosciuto",
-    deleteSuccess: "Podcast eliminato con successo",
     failedToDelete: "Impossibile eliminare il podcast",
   },
   settings: {
@@ -771,13 +733,8 @@ export const itIT = {
     title: "Strumenti avanzati",
     desc: "Strumenti e utilità avanzate per utenti esperti",
     systemInfo: "Informazioni sistema",
-    systemInfoDesc: "Visualizza lo stato dei componenti di sistema sottostanti",
     rebuildEmbeddings: "Ricostruisci indicizzazioni",
     rebuildEmbeddingsDesc: "Ricostruisci l'indice di ricerca vettoriale per tutte le fonti",
-    rebuildWarning: "Questa azione può richiedere molto tempo a seconda del numero di fonti. Cancellerà gli indici vettoriali esistenti e rigenererà le indicizzazioni per tutto.",
-    startRebuild: "Avvia ricostruzione",
-    rebuilding: "Ricostruzione...",
-    rebuildSuccess: "Ricostruzione indicizzazioni avviata con successo",
     currentVersion: "Versione corrente",
     latestVersion: "Ultima versione",
     status: "Stato",
@@ -822,10 +779,8 @@ export const itIT = {
     defaultPrompt: "Prompt trasformazione predefinito",
     defaultPromptDesc: "Questo verrà aggiunto a tutti i tuoi prompt di trasformazione",
     defaultPromptPlaceholder: "Inserisci le tue istruzioni di trasformazione predefinite...",
-    saveDefault: "Salva predefinito",
     listTitle: "Trasformazioni personalizzate",
     createNew: "Crea Nuova",
-    testInPlayground: "Testa nel playground",
     inputLabel: "Testo di input",
     inputPlaceholder: "Inserisci del testo da trasformare...",
     outputLabel: "Output",
@@ -844,83 +799,33 @@ export const itIT = {
     deleteSuccess: "Trasformazione eliminata con successo",
     noTransformations: "Ancora nessuna trasformazione",
     createOne: "Crea una trasformazione per iniziare",
-    deleteDesc: "L'eliminazione di questa trasformazione non può essere annullata.",
     selectModel: "Seleziona un modello",
     deleteConfirm: "Sei sicuro di voler eliminare questa trasformazione?",
     model: "Modello",
     systemPrompt: "Prompt di sistema",
-    type: "Tipo",
-    extraction: "Estrazione",
-    summary: "Riepilogo",
-    custom: "Personalizzato",
-    saveChanges: "Salva modifiche",
     overrideModelDesc: "Sovrascrivi il modello predefinito per questa sessione chat. Lascia vuoto per usare il default di sistema.",
     sessionUseReplacement: "Questa sessione userà {name} invece del modello predefinito.",
     systemDefault: "Predefinito di sistema",
   },
   models: {
-    title: "Gestione modelli",
-    desc: "Configura i modelli IA per diversi scopi in Open Notebook",
-    failedToLoad: "Impossibile caricare i dati dei modelli",
-    language: "Modelli linguistici",
     embedding: "Modelli di embedding",
     tts: "Text to Speech (TTS)",
     stt: "Speech to Text (STT)",
-    providers: "Provider",
-    defaultModels: "Modelli predefiniti",
-    status: "Stato",
-    notConfigured: "Non configurato",
-    active: "Attivo",
-    inactive: "Inattivo",
-    configure: "Configura",
-    saveChanges: "Salva modifiche",
-    addModel: "Aggiungi modello",
-    modelName: "Nome modello",
     provider: "Provider",
     apiKey: "Chiave API",
-    baseUrl: "URL Base",
-    capabilities: "Capacità",
-    enabled: "Abilitato",
-    disabled: "Disabilitato",
-    deleteConfirm: "Sei sicuro di voler eliminare questo modello?",
     deleteSuccess: "Modello eliminato con successo",
     saveSuccess: "Modello salvato con successo",
-    providerStatus: "Stato provider",
-    connectionOk: "Connessione OK",
-    connectionFailed: "Connessione fallita",
-    changeEmbeddingWarning: "Cambiare il modello di embedding predefinito influenzerà le nuove fonti. Le fonti esistenti potrebbero dover essere re-indicizzate.",
-    changeEmbeddingTitle: "Cambiare il modello di embedding predefinito?",
-    aiProviders: "Provider IA",
-    providerConfigDesc: "Configura i provider tramite variabili d'ambiente per abilitare i loro modelli.",
-    configuredCount: "{count} di {total} configurati",
     noModels: "Nessun modello",
-    learnMore: "Scopri come configurare i provider →",
-    seeLess: "Mostra meno",
-    seeAll: "Mostra tutti i {count} provider",
-    language_models: "Modelli linguistici",
-    embedding_models: "Modelli di embedding",
-    text_to_speech: "Text to Speech (TTS)",
-    speech_to_text: "Speech to Text (STT)",
-    languageDesc: "Chat, trasformazioni e generazione testo",
-    embeddingDesc: "Ricerca semantica e embedding vettoriali",
-    ttsDesc: "Genera audio da testo",
-    sttDesc: "Trascrivi audio in testo",
-    all: "Tutti",
-    noModelsConfigured: "Nessun modello configurato",
-    noProviderModelsConfigured: "Nessun modello {provider} configurato",
-    showMore: "Mostra altri {count}",
     discoverModels: "Scopri Modelli",
     noModelsFound: "Nessun modello trovato per questo provider",
     modelType: "Tipo di Modello",
     modelTypeHint: "Seleziona il tipo per i modelli che vuoi aggiungere. Se hai bisogno di tipi diversi, aggiungili in lotti separati.",
     deleteModel: "Elimina modello",
-    deleteModelDesc: "Sei sicuro di voler eliminare \"{name}\"? Questa azione non può essere annullata.",
     defaultAssignments: "Assegnazioni modelli predefiniti",
     defaultAssignmentsDesc: "Configura quali modelli usare per diversi scopi in Open Notebook",
     missingRequiredModels: "Modelli richiesti mancanti: {models}. Open Notebook potrebbe non funzionare correttamente senza questi.",
     selectModelPlaceholder: "Seleziona un modello",
     requiredModelPlaceholder: "⚠️ Richiesto - Seleziona un modello",
-    whichModelToChoose: "Quale modello dovrei scegliere? →",
     chatModelLabel: "Modello chat",
     chatModelDesc: "Usato per le conversazioni chat",
     transformationModelLabel: "Modello trasformazione",
@@ -935,16 +840,9 @@ export const itIT = {
     ttsModelDesc: "Usato per la generazione podcast",
     sttModelLabel: "Modello Speech-to-Text",
     sttModelDesc: "Usato per la trascrizione audio",
-    addSpecificModel: "Aggiungi modello {type}",
-    addSpecificModelDesc: "Configura un nuovo modello {type} dai provider disponibili.",
-    noProvidersForType: "Nessun provider disponibile per modelli {type}",
     selectProviderPlaceholder: "Seleziona un provider",
     providerRequired: "Il provider è obbligatorio",
-    modelNameRequired: "Il nome del modello è obbligatorio",
     modelRequired: "Il modello è obbligatorio",
-    adding: "Aggiunta...",
-    azureHint: "Per Azure, usa il nome del deployment come nome del modello",
-    enterModelName: "Inserisci nome modello",
     embeddingChangeTitle: "Cambio modello di embedding",
     embeddingChangeConfirm: "Stai per cambiare il modello di embedding da {from} a {to}.",
     rebuildRequired: "Importante: ricostruzione richiesta",
@@ -957,28 +855,24 @@ export const itIT = {
     proceedToRebuildPrompt: "Vuoi procedere alla pagina avanzate per avviare la ricostruzione ora?",
     changeModelOnly: "Cambia solo modello",
     changeAndRebuild: "Cambia e vai a ricostruzione",
+    autoAssign: "Assegnazione automatica predefiniti",
+    autoAssigning: "Assegnazione in corso...",
+    autoAssignSuccess: "{count} modelli predefiniti assegnati automaticamente",
+    autoAssignNoModels: "Nessun modello disponibile da assegnare. Sincronizza prima i modelli.",
+    autoAssignAlreadySet: "Tutti i modelli predefiniti sono già configurati",
     testModel: "Testa Modello",
     testModelSuccess: "Test del Modello Superato",
     testModelFailed: "Test del Modello Fallito",
-    testingModel: "Test del modello in corso...",
     searchOrAddModel: "Cerca o digita un nome modello...",
-    addCustomModel: 'Aggiungi "{name}"',
+    addCustomModel: "Aggiungi \"{name}\"",
   },
   apiKeys: {
     title: "Configura la tua IA con le tue chiavi API",
     description: "Salva le chiavi API in modo sicuro nel database per abilitare i provider IA in Open Notebook.",
-    loadFailed: "Impossibile caricare lo stato delle chiavi API",
     encryptionRequired: "Chiave di crittografia non configurata",
     encryptionRequiredDescription: "Imposta la variabile d'ambiente OPEN_NOTEBOOK_ENCRYPTION_KEY su una stringa segreta qualsiasi per abilitare il salvataggio delle chiavi API nel database.",
     configured: "Configurato",
     notConfigured: "Non configurato",
-    sourceDatabase: "Database",
-    sourceEnvironment: "Variabile d'ambiente",
-    enterApiKey: "Inserisci la tua chiave API",
-    enterBaseUrl: "Inserisci l'URL base",
-    saveSuccess: "Chiave API salvata con successo",
-    deleteSuccess: "Chiave API eliminata con successo",
-    fromEnvironmentHint: "Questa chiave è impostata tramite variabile d'ambiente. Salva una nuova chiave per sovrascriverla nel database.",
     migrationAvailable: "Variabili d'ambiente rilevate",
     migrationDescription: "{count} chiave/i API configurata/e tramite variabili d'ambiente. Puoi migrarle nel database per una gestione più semplice.",
     migrateToDatabase: "Migra nel database",
@@ -986,67 +880,29 @@ export const itIT = {
     migrationSuccess: "{count} chiave/i API migrata/e con successo",
     migrationErrors: "{count} chiave/i non migrata/e",
     migrationNothingToMigrate: "Tutte le chiavi sono già nel database",
-    serviceType: "Tipo di servizio",
-    serviceLlm: "Modello linguistico (LLM)",
-    serviceEmbedding: "Embedding",
-    serviceStt: "Riconoscimento vocale (STT)",
-    serviceTts: "Sintesi vocale (TTS)",
-    serviceEndpoints: "Endpoint dei servizi (opzionale)",
-    azureEndpointsHint: "Se necessario, configura endpoint diversi per ogni tipo di servizio.",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "Configura un endpoint API compatibile con OpenAI. Ogni tipo di servizio può avere la propria configurazione.",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "Scopri come configurare le chiavi API →",
     testConnection: "Testa connessione",
-    testing: "Test in corso...",
     testSuccess: "Connessione riuscita",
     testFailed: "Test di connessione fallito",
     syncModels: "Sincronizza modelli",
-    syncing: "Sincronizzazione...",
     syncSuccess: "Trovati {discovered} modelli, aggiunti {new} nuovi",
     syncNoNew: "Trovati {count} modelli, tutti già registrati",
     syncFailed: "Sincronizzazione modelli fallita",
-    syncAllModels: "Sincronizza tutti i provider",
-    syncAllSuccess: "Trovati {discovered} modelli da tutti i provider, aggiunti {new} nuovi",
-    modelsConfigured: "{count} modelli",
-    noModelsConfigured: "Nessun modello",
-    viewModels: "Visualizza modelli",
-    supportedTypes: "Tipi supportati",
-    typeLanguage: "Linguistico",
-    typeEmbedding: "Embedding",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "Endpoint API",
     getApiKey: "Ottieni chiave API",
     vertexProject: "ID progetto GCP",
     vertexLocation: "Regione",
     vertexCredentials: "Percorso JSON account di servizio",
-    vertexCredentialsHint: "Percorso del file JSON dell'account di servizio Google Cloud all'interno del container.",
-
-    // Traduzioni multi-configurazione
-    configsCount: "{count} configurazioni",
-    configuredMultiple: "Configurato",
     addConfig: "Aggiungi configurazione",
     editConfig: "Modifica configurazione",
     deleteConfig: "Elimina configurazione",
-    setAsDefault: "Imposta come predefinito",
-    defaultBadge: "Predefinito",
-    defaultDescription: "Configurazione predefinita per questo provider",
     configName: "Nome configurazione",
     configNameHint: "Un nome descrittivo per questa configurazione (es. 'Produzione', 'Sviluppo')",
     baseUrl: "URL base",
-    baseUrlHint: "Predefinito: {url}",
     baseUrlOverrideHint: "Modifica solo se devi sovrascrivere l'endpoint API predefinito del provider.",
-    ollamaApiKeyHint: "Necessaria solo per Ollama Cloud. Lascia vuoto per Ollama locale.",
-    noConfigs: "Nessuna configurazione presente",
-    noConfigsHint: "Aggiungi una configurazione per iniziare a usare questo provider",
     deleteConfigConfirm: "Sei sicuro di voler eliminare '{name}'? Questa azione non può essere annullata.",
-    setDefaultConfirm: "Impostare '{name}' come configurazione predefinita?",
     configSaveSuccess: "Configurazione salvata con successo",
     configUpdateSuccess: "Configurazione aggiornata con successo",
     configDeleteSuccess: "Configurazione eliminata con successo",
-    configSetDefaultSuccess: "Configurazione predefinita aggiornata",
-    apiKeyHint: "Inserisci la chiave API per questa configurazione",
     apiKeyEditHint: "Lascia vuoto per mantenere la chiave API esistente",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/ja-JP/index.ts b/frontend/src/lib/locales/ja-JP/index.ts
index 90aee8b..daf6cdf 100644
--- a/frontend/src/lib/locales/ja-JP/index.ts
+++ b/frontend/src/lib/locales/ja-JP/index.ts
@@ -36,22 +36,16 @@ export const jaJP = {
     warning: "警告",
     error: "エラー",
     success: "成功",
-    sessions: "セッション",
     model: "モデル",
-    send: "送信",
     back: "戻る",
     next: "次へ",
     done: "完了",
     processing: "処理中...",
     creating: "作成中...",
-    tokenCount: "トークン数",
-    charCount: "文字数",
     linked: "リンク済み",
-    added: "{date}に追加",
     adding: "追加中...",
     addSelected: "選択項目を追加",
     customModel: "カスタムモデル",
-    messages: "メッセージ",
     failed: "失敗",
     current: "現在",
     save: "保存",
@@ -72,7 +66,6 @@ export const jaJP = {
     unknown: "不明",
     notes: "ノート",
     chat: "チャット",
-    details: "詳細",
     deleteForever: "完全に削除",
     connectionError: "接続エラー",
     unableToConnect: "APIサーバーに接続できません",
@@ -85,7 +78,6 @@ export const jaJP = {
     checkConsoleLogs: "ブラウザコンソールで詳細ログを確認してください（🔧 [Config] メッセージを探してください）",
     yes: "はい",
     no: "いいえ",
-    simple: "シンプル",
     saving: "保存中...",
     description: "説明",
     saveToNote: "ノートに保存",
@@ -103,7 +95,6 @@ export const jaJP = {
     nameRequired: "名前は必須です",
     modelConfiguration: "モデル設定",
     resetToDefault: "デフォルトに戻す",
-    notFound: "見つかりません",
     reasoning: "推論",
     searchTerms: "検索ワード",
     strategy: "戦略",
@@ -112,14 +103,12 @@ export const jaJP = {
     notebookLabel: "ノートブック: {name}",
     itemNotFound: "この{type}は見つかりませんでした",
     accessibility: {
-      navigation: "ナビゲーション",
       transformationViews: "トランスフォーメーション表示",
       searchKB: "ナレッジベースに質問・検索",
       enterQuestion: "ナレッジベースへの質問を入力",
       enterSearch: "検索クエリを入力",
       searchKBBtn: "ナレッジベースを検索",
       podcastViews: "ポッドキャスト表示",
-      chatSessions: "チャットセッション",
       ytVideo: "YouTube動画",
       askResponse: "質問への回答",
       searchNotebooks: "ノートブックを検索",
@@ -127,7 +116,6 @@ export const jaJP = {
     url: "URL",
     errorDetails: "エラー詳細",
     editTransformation: "トランスフォーメーションを編集",
-    comingSoon: "近日公開",
     retry: "再試行",
     traditionalChinese: "繁體中文",
     portuguese: "Português",
@@ -165,7 +153,6 @@ export const jaJP = {
     failedToSendMessage: "メッセージの送信に失敗しました",
     unauthorized: "認証エラー。パスワードを確認してください",
     invalidPassword: "パスワードが無効です",
-    missingAuth: "認証情報がありません",
     embeddingModelRequired: "この機能にはEmbeddingモデルが必要です。モデルセクションで設定してください。",
     strategyModelNotFound: "戦略モデルが見つかりません",
     answerModelNotFound: "回答モデルが見つかりません",
@@ -206,7 +193,6 @@ export const jaJP = {
     passwordPlaceholder: "パスワード",
     signingIn: "サインイン中...",
     signIn: "サインイン",
-    unhandledError: "ログイン中に予期しないエラーが発生しました",
     connectErrorHint: "サーバーに接続できません。APIが起動しているか確認してください。",
   },
   navigation: {
@@ -226,7 +212,6 @@ export const jaJP = {
     nav: "ナビゲーション",
     language: "言語を切り替え",
     theme: "テーマ",
-    search: "検索",
     ask: "質問",
   },
   notebooks: {
@@ -248,12 +233,8 @@ export const jaJP = {
     keepExclusiveSourcesLabel: "リンク解除して保持",
     activeNotebooks: "アクティブなノートブック",
     archivedNotebooks: "アーカイブ済みノートブック",
-    emptyDescription: "最初のノートブックを作成してリサーチを整理しましょう。",
-    noActiveNotebooks: "アクティブなノートブックがありません",
-    noArchivedNotebooks: "アーカイブ済みノートブックがありません",
     notFound: "ノートブックが見つかりません",
     notFoundDesc: "指定されたノートブックは存在しません。",
-    noDescription: "説明なし...",
     updated: "更新日時",
     namePlaceholder: "ノートブック名",
     addDescription: "説明を追加...",
@@ -278,10 +259,7 @@ export const jaJP = {
     add: "ソースを追加",
     addNew: "新規ソースを追加",
     addExisting: "既存ソースを追加",
-    empty: "ソースがまだありません",
-    emptyDesc: "最初のソースを追加してナレッジベースの構築を始めましょう。",
     delete: "ソースを削除",
-    deleteMsg: "このソースを削除しますか？この操作は元に戻せません。",
     statusPreparing: "準備中",
     statusQueued: "キュー待ち",
     statusProcessing: "処理中",
@@ -321,7 +299,6 @@ export const jaJP = {
     sourceRequeued: "ソースの再処理をキューに追加",
     sourceRequeuedDesc: "ソースを再処理キューに追加しました。",
     failedToRetry: "再試行に失敗",
-    failedToRetryDesc: "ソースの再処理に失敗しました。もう一度お試しください。",
     sourcesAddedToNotebook: "{count}件のソースをノートブックに追加しました",
     failedToAddSourcesToNotebook: "ノートブックへのソース追加に失敗しました",
     partialAddSuccess: "{success}件追加成功、{failed}件失敗",
@@ -359,34 +336,31 @@ export const jaJP = {
     deleteInsight: "インサイトを削除",
     deleteInsightConfirm: "このインサイトを削除しますか？この操作は元に戻せません。",
     insightGenerationStarted: "インサイトの生成が開始されました。まもなく表示されます。",
-    deleteNoteConfirm: 'このノートを削除しますか？この操作は元に戻せません。',
-    editNote: 'ノートを編集',
-    createNote: 'ノートを作成',
-    addTitle: 'タイトルを追加...',
-    untitledNote: '無題のノート',
-    writeNotePlaceholder: 'ノートの内容をここに入力...',
-    saveNote: 'ノートを保存',
-    createNoteBtn: 'ノートを作成',
-    noNotesYet: "ノートがまだありません",
+    editNote: "ノートを編集",
+    createNote: "ノートを作成",
+    addTitle: "タイトルを追加...",
+    untitledNote: "無題のノート",
+    writeNotePlaceholder: "ノートの内容をここに入力...",
+    saveNote: "ノートを保存",
+    createNoteBtn: "ノートを作成",
     createFirstNote: "最初のノートを作成してインサイトや気づきを記録しましょう。",
-    deleteNote: "ノートを削除",
-    urlLabel: 'URL *',
-    fileLabel: 'ファイル *',
-    textContentLabel: 'テキストコンテンツ *',
-    enterUrlsPlaceholder: 'URLを1行ずつ入力\nhttps://example.com/article1\nhttps://example.com/article2',
-    batchUrlHint: '複数のURLを貼り付けて一括インポート（1行に1つ）',
-    invalidUrlsDetected: '無効なURLが検出されました:',
-    lineLabel: '{line}行目',
-    fixInvalidUrls: '無効なURLを修正または削除してください',
-    selectMultipleFilesHint: '複数ファイルを選択して一括インポート。対応形式：ドキュメント（PDF、DOC、DOCX、PPT、XLS、EPUB、TXT、MD）、メディア（MP4、MP3、WAV、M4A）、画像（JPG、PNG）、アーカイブ（ZIP）',
-    selectedFiles: '選択されたファイル:',
-    textPlaceholder: 'コンテンツを貼り付けまたは入力...',
-    htmlDetected: 'HTMLコンテンツが検出されました。処理後にMarkdownに変換されます。',
-    titlePlaceholder: 'ソースにわかりやすいタイトルを付けてください',
-    batchTitlesAuto: 'タイトルは各ソースごとに自動生成されます。',
-    batchCommonSettings: '同じノートブックとトランスフォーメーションがすべてのアイテムに適用されます。',
-    urlsCount: '{count}件のURL',
-    filesCount: '{count}件のファイル',
+    urlLabel: "URL *",
+    fileLabel: "ファイル *",
+    textContentLabel: "テキストコンテンツ *",
+    enterUrlsPlaceholder: "URLを1行ずつ入力\nhttps://example.com/article1\nhttps://example.com/article2",
+    batchUrlHint: "複数のURLを貼り付けて一括インポート（1行に1つ）",
+    invalidUrlsDetected: "無効なURLが検出されました:",
+    lineLabel: "{line}行目",
+    fixInvalidUrls: "無効なURLを修正または削除してください",
+    selectMultipleFilesHint: "複数ファイルを選択して一括インポート。対応形式：ドキュメント（PDF、DOC、DOCX、PPT、XLS、EPUB、TXT、MD）、メディア（MP4、MP3、WAV、M4A）、画像（JPG、PNG）、アーカイブ（ZIP）",
+    selectedFiles: "選択されたファイル:",
+    textPlaceholder: "コンテンツを貼り付けまたは入力...",
+    htmlDetected: "HTMLコンテンツが検出されました。処理後にMarkdownに変換されます。",
+    titlePlaceholder: "ソースにわかりやすいタイトルを付けてください",
+    batchTitlesAuto: "タイトルは各ソースごとに自動生成されます。",
+    batchCommonSettings: "同じノートブックとトランスフォーメーションがすべてのアイテムに適用されます。",
+    urlsCount: "{count}件のURL",
+    filesCount: "{count}件のファイル",
     addSource: "ソースを追加",
     notEmbeddedAlert: "コンテンツが未Embedding",
     notEmbeddedDesc: "このコンテンツはベクトル検索用にEmbeddingされていません。Embeddingを行うと高度な検索機能やコンテンツの発見性が向上します。",
@@ -403,7 +377,6 @@ export const jaJP = {
     retryProcessing: "処理を再試行",
     deleteSource: "ソースを削除",
     retry: "再試行",
-    progress: "進捗",
     addExistingTitle: "既存ソースを追加",
     addExistingDesc: "すべてのノートブックから既存のソースを選択して現在のノートブックに追加します。",
     searchPlaceholder: "名前またはURLでソースを検索...",
@@ -435,8 +408,6 @@ export const jaJP = {
     batchFailed: "{count}件すべてのソース作成に失敗しました",
     batchPartial: "{success}件成功、{failed}件失敗",
     submittingSource: "ソースを処理に送信中...",
-    contentRequired: "選択したソースタイプに必要なコンテンツを入力してください",
-    titleRequiredForText: "テキストソースにはタイトルが必要です",
     processingBatchSources: "{count}件のソースを処理中。しばらくお待ちください。",
     processingSource: "ソースを処理中です。しばらくお待ちください。",
     maxFilesAllowed: "一括処理は最大{count}件までです",
@@ -445,26 +416,20 @@ export const jaJP = {
     sessions: "セッション",
     sessionTitlePlaceholder: "タイトルを入力...",
     noSessions: "チャットセッションがまだありません",
-    startChatting: "ソースについてチャットを始めましょう。",
     deleteSession: "セッションを削除",
     deleteSessionDesc: "このチャットセッションを削除しますか？この操作は元に戻せません。",
     sendPlaceholder: "ソースについて何でも質問してください...",
-    newChat: "新規チャット",
     sessionsTitle: "チャットセッション",
-    clearhistory: "履歴をクリア",
-    renameSession: "セッション名を変更",
-    noSourcesLinked: "リンクされたソースがありません",
-    thinking: "AIが考え中...",
     chatWith: "{name}とチャット",
     startConversation: "この{type}について会話を始めましょう",
     askQuestions: "コンテンツをより深く理解するために質問してください",
     pressToSend: "{key}を押して送信",
     model: "モデル",
-    createToStart: 'セッションを作成して開始',
-    chatWithNotebook: 'ノートブックとチャット',
-    unableToLoadChat: 'チャットを読み込めません',
-    noDescription: '説明なし',
-    startByCreating: '最初のノートブックを作成してリサーチを整理しましょう。',
+    createToStart: "セッションを作成して開始",
+    chatWithNotebook: "ノートブックとチャット",
+    unableToLoadChat: "チャットを読み込めません",
+    noDescription: "説明なし",
+    startByCreating: "最初のノートブックを作成してリサーチを整理しましょう。",
     messagesCount: "{count}件のメッセージ",
     sessionCreated: "チャットセッションを作成しました",
     sessionUpdated: "セッションを更新しました",
@@ -508,8 +473,6 @@ export const jaJP = {
     saveSuccess: "ノートブックに保存しました",
     saveError: "ノートブックへの保存に失敗しました",
     selectNotebook: "ノートブックを選択",
-    createNewNotebook: "新規ノートブックを作成",
-    cancel: "キャンセル",
     searchAndAsk: "検索と質問",
     searchResultsFor: "「{query}」の検索結果",
     askAbout: "「{query}」について質問",
@@ -734,8 +697,6 @@ export const jaJP = {
     speakerCountMin: "最低1人のスピーカーが必要です",
     speakerCountMax: "最大4人まで設定できます",
     delete: "削除",
-    unknown: "不明",
-    deleteSuccess: "ポッドキャストを削除しました",
     failedToDelete: "ポッドキャストの削除に失敗しました",
   },
   settings: {
@@ -772,13 +733,8 @@ export const jaJP = {
     title: "詳細ツール",
     desc: "パワーユーザー向けの詳細ツールとユーティリティ",
     systemInfo: "システム情報",
-    systemInfoDesc: "基盤システムコンポーネントのステータスを表示",
     rebuildEmbeddings: "Embeddingを再構築",
     rebuildEmbeddingsDesc: "すべてのソースのベクトル検索インデックスを再構築",
-    rebuildWarning: "このアクションはソース数によっては非常に時間がかかる場合があります。既存のベクトルインデックスをクリアし、すべてのEmbeddingを再生成します。",
-    startRebuild: "再構築を開始",
-    rebuilding: "再構築中...",
-    rebuildSuccess: "Embedding再構築を開始しました",
     currentVersion: "現在のバージョン",
     latestVersion: "最新バージョン",
     status: "ステータス",
@@ -823,105 +779,53 @@ export const jaJP = {
     defaultPrompt: "デフォルトトランスフォーメーションプロンプト",
     defaultPromptDesc: "これはすべてのトランスフォーメーションプロンプトに追加されます",
     defaultPromptPlaceholder: "デフォルトのトランスフォーメーション指示を入力...",
-    saveDefault: "デフォルトを保存",
     listTitle: "カスタムトランスフォーメーション",
     createNew: "新規作成",
-    testInPlayground: "プレイグラウンドでテスト",
     inputLabel: "入力テキスト",
-    inputPlaceholder: '変換するテキストを入力...',
-    outputLabel: '出力',
-    runTest: 'トランスフォーメーションを実行',
-    running: '実行中...',
-    selectToStart: 'トランスフォーメーションを選択して開始',
-    name: '名前',
-    namePlaceholder: '一意の識別子、例: key_topics',
-    titlePlaceholder: '表示タイトル、空欄の場合は名前を使用',
-    promptPlaceholder: 'このトランスフォーメーションを実行するプロンプトを書いてください...',
-    descriptionPlaceholder: 'このトランスフォーメーションの機能を説明してください。',
-    suggestDefault: '新しいソースでデフォルトで提案',
-    promptHint: 'プロンプトはソースコンテンツを念頭に置いて書いてください。モデルに要約、インサイトの抽出、テーブルなどの構造化出力の生成を依頼できます。',
-    createSuccess: 'トランスフォーメーションを作成しました',
-    updateSuccess: 'トランスフォーメーションを更新しました',
-    deleteSuccess: 'トランスフォーメーションを削除しました',
+    inputPlaceholder: "変換するテキストを入力...",
+    outputLabel: "出力",
+    runTest: "トランスフォーメーションを実行",
+    running: "実行中...",
+    selectToStart: "トランスフォーメーションを選択して開始",
+    name: "名前",
+    namePlaceholder: "一意の識別子、例: key_topics",
+    titlePlaceholder: "表示タイトル、空欄の場合は名前を使用",
+    promptPlaceholder: "このトランスフォーメーションを実行するプロンプトを書いてください...",
+    descriptionPlaceholder: "このトランスフォーメーションの機能を説明してください。",
+    suggestDefault: "新しいソースでデフォルトで提案",
+    promptHint: "プロンプトはソースコンテンツを念頭に置いて書いてください。モデルに要約、インサイトの抽出、テーブルなどの構造化出力の生成を依頼できます。",
+    createSuccess: "トランスフォーメーションを作成しました",
+    updateSuccess: "トランスフォーメーションを更新しました",
+    deleteSuccess: "トランスフォーメーションを削除しました",
     noTransformations: "トランスフォーメーションがまだありません",
     createOne: "開始するにはトランスフォーメーションを作成してください",
-    deleteDesc: "このトランスフォーメーションを削除すると元に戻せません。",
     selectModel: "モデルを選択",
     deleteConfirm: "このトランスフォーメーションを削除しますか？",
     model: "モデル",
     systemPrompt: "システムプロンプト",
-    type: "タイプ",
-    extraction: "抽出",
-    summary: "要約",
-    custom: "カスタム",
-    saveChanges: "変更を保存",
     overrideModelDesc: "このチャットセッションのデフォルトモデルを上書きします。空欄の場合はシステムデフォルトを使用します。",
     sessionUseReplacement: "このセッションはデフォルトモデルの代わりに{name}を使用します。",
     systemDefault: "システムデフォルト",
   },
   models: {
-    title: "モデル管理",
-    desc: "Open Notebook全体で異なる目的に使用するAIモデルを設定",
-    failedToLoad: "モデルデータの読み込みに失敗しました",
-    language: "言語モデル",
     embedding: "Embeddingモデル",
     tts: "音声合成（TTS）",
     stt: "音声認識（STT）",
-    providers: "プロバイダー",
-    defaultModels: "デフォルトモデル",
-    status: "ステータス",
-    notConfigured: "未設定",
-    active: "アクティブ",
-    inactive: "非アクティブ",
-    configure: "設定",
-    saveChanges: "変更を保存",
-    addModel: "モデルを追加",
-    modelName: "モデル名",
     provider: "プロバイダー",
     apiKey: "APIキー",
-    baseUrl: "ベースURL",
-    capabilities: "機能",
-    enabled: "有効",
-    disabled: "無効",
-    deleteConfirm: "このモデルを削除しますか？",
     deleteSuccess: "モデルを削除しました",
     saveSuccess: "モデルを保存しました",
-    providerStatus: "プロバイダーステータス",
-    connectionOk: "接続OK",
-    connectionFailed: "接続失敗",
-    changeEmbeddingWarning: "デフォルトのEmbeddingモデルを変更すると新しいソースに影響します。既存のソースは再インデックスが必要になる場合があります。",
-    changeEmbeddingTitle: "デフォルトEmbeddingモデルを変更しますか？",
-    aiProviders: "AIプロバイダー",
-    providerConfigDesc: "環境変数を通じてプロバイダーを設定し、モデルを有効にしてください。",
-    configuredCount: "{total}件中{count}件設定済み",
     noModels: "モデルなし",
-    learnMore: "プロバイダーの設定方法を見る →",
-    seeLess: "折りたたむ",
-    seeAll: "{count}件すべてのプロバイダーを表示",
-    language_models: "言語モデル",
-    embedding_models: "Embeddingモデル",
-    text_to_speech: "音声合成（TTS）",
-    speech_to_text: "音声認識（STT）",
-    languageDesc: "チャット、トランスフォーメーション、テキスト生成",
-    embeddingDesc: "セマンティック検索とベクトルEmbedding",
-    ttsDesc: "テキストから音声を生成",
-    sttDesc: "音声をテキストに書き起こし",
-    all: "すべて",
-    noModelsConfigured: "モデルが設定されていません",
-    noProviderModelsConfigured: "{provider}モデルが設定されていません",
-    showMore: "さらに{count}件表示",
     discoverModels: "モデルを検出",
     noModelsFound: "このプロバイダーからモデルが見つかりません",
     modelType: "モデルタイプ",
     modelTypeHint: "追加するモデルのタイプを選択してください。異なるタイプが必要な場合は、別々のバッチで追加してください。",
     deleteModel: "モデルを削除",
-    deleteModelDesc: "「{name}」を削除しますか？この操作は元に戻せません。",
     defaultAssignments: "デフォルトモデル割り当て",
     defaultAssignmentsDesc: "Open Notebook全体で異なる目的に使用するモデルを設定",
     missingRequiredModels: "必須モデルがありません: {models}。これらがないとOpen Notebookが正しく機能しない可能性があります。",
     selectModelPlaceholder: "モデルを選択",
     requiredModelPlaceholder: "⚠️ 必須 - モデルを選択",
-    whichModelToChoose: "どのモデルを選ぶべき？ →",
     chatModelLabel: "チャットモデル",
     chatModelDesc: "チャット会話に使用",
     transformationModelLabel: "トランスフォーメーションモデル",
@@ -936,16 +840,9 @@ export const jaJP = {
     ttsModelDesc: "ポッドキャスト生成に使用",
     sttModelLabel: "音声認識モデル",
     sttModelDesc: "音声の書き起こしに使用",
-    addSpecificModel: "{type}を追加",
-    addSpecificModelDesc: "利用可能なプロバイダーから新しい{type}を設定します。",
-    noProvidersForType: "{type}用のプロバイダーがありません",
     selectProviderPlaceholder: "プロバイダーを選択",
     providerRequired: "プロバイダーは必須です",
-    modelNameRequired: "モデル名は必須です",
     modelRequired: "モデルは必須です",
-    adding: "追加中...",
-    azureHint: "Azureの場合、デプロイメント名をモデル名として使用してください",
-    enterModelName: "モデル名を入力",
     embeddingChangeTitle: "Embeddingモデルの変更",
     embeddingChangeConfirm: "Embeddingモデルを{from}から{to}に変更しようとしています。",
     rebuildRequired: "重要：再構築が必要",
@@ -959,7 +856,6 @@ export const jaJP = {
     changeModelOnly: "モデルのみ変更",
     changeAndRebuild: "変更して再構築へ",
     autoAssign: "デフォルトを自動割り当て",
-    autoAssignDesc: "各スロットに最適なモデルを自動的に割り当てます",
     autoAssigning: "割り当て中...",
     autoAssignSuccess: "{count}件のデフォルトモデルを自動的に割り当てました",
     autoAssignNoModels: "割り当て可能なモデルがありません。先にモデルを同期してください。",
@@ -967,25 +863,16 @@ export const jaJP = {
     testModel: "モデルをテスト",
     testModelSuccess: "モデルテスト成功",
     testModelFailed: "モデルテスト失敗",
-    testingModel: "モデルをテスト中...",
     searchOrAddModel: "検索またはモデル名を入力...",
-    addCustomModel: '"{name}" を追加',
+    addCustomModel: "\"{name}\" を追加",
   },
   apiKeys: {
     title: "独自のAPIキーでAIを設定",
     description: "APIキーをデータベースに安全に保存し、Open NotebookでAIプロバイダーを有効にします。",
-    loadFailed: "APIキーのステータスの読み込みに失敗しました",
     encryptionRequired: "暗号化キーが設定されていません",
     encryptionRequiredDescription: "OPEN_NOTEBOOK_ENCRYPTION_KEY 環境変数に任意の秘密文字列を設定して、データベースへのAPIキーの保存を有効にしてください。",
     configured: "設定済み",
     notConfigured: "未設定",
-    sourceDatabase: "データベース",
-    sourceEnvironment: "環境変数",
-    enterApiKey: "APIキーを入力してください",
-    enterBaseUrl: "ベースURLを入力してください",
-    saveSuccess: "APIキーを保存しました",
-    deleteSuccess: "APIキーを削除しました",
-    fromEnvironmentHint: "このキーは環境変数で設定されています。新しいキーを保存するとデータベースで上書きされます。",
     migrationAvailable: "環境変数を検出",
     migrationDescription: "{count}個のAPIキーが環境変数で設定されています。管理を容易にするためにデータベースに移行できます。",
     migrateToDatabase: "データベースに移行",
@@ -993,67 +880,29 @@ export const jaJP = {
     migrationSuccess: "{count}個のAPIキーを移行しました",
     migrationErrors: "{count}個のキーの移行に失敗しました",
     migrationNothingToMigrate: "すべてのキーはすでにデータベースにあります",
-    serviceType: "サービスタイプ",
-    serviceLlm: "言語モデル（LLM）",
-    serviceEmbedding: "Embedding",
-    serviceStt: "音声認識（STT）",
-    serviceTts: "音声合成（TTS）",
-    serviceEndpoints: "サービスエンドポイント（任意）",
-    azureEndpointsHint: "必要に応じて、各サービスタイプに異なるエンドポイントを設定します。",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "OpenAI互換のAPIエンドポイントを設定します。各サービスタイプに独自の設定が可能です。",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "APIキーの設定方法を確認 →",
     testConnection: "接続テスト",
-    testing: "テスト中...",
     testSuccess: "接続成功",
     testFailed: "接続テストに失敗",
     syncModels: "モデル同期",
-    syncing: "同期中...",
     syncSuccess: "{discovered} モデルを発見、{new} 個を新規追加",
     syncNoNew: "{count} モデルを発見、すべて登録済み",
     syncFailed: "モデルの同期に失敗",
-    syncAllModels: "全プロバイダーを同期",
-    syncAllSuccess: "全プロバイダーで {discovered} モデルを発見、{new} 個を新規追加",
-    modelsConfigured: "{count} モデル",
-    noModelsConfigured: "モデルなし",
-    viewModels: "モデルを表示",
-    supportedTypes: "対応タイプ",
-    typeLanguage: "言語",
-    typeEmbedding: "埋め込み",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "APIエンドポイント",
     getApiKey: "APIキーを取得",
     vertexProject: "GCPプロジェクトID",
     vertexLocation: "リージョン",
     vertexCredentials: "サービスアカウントJSONパス",
-    vertexCredentialsHint: "コンテナ内のGoogle Cloudサービスアカウント JSON ファイルへのパス。",
-
-    // Multi-config translations
-    configsCount: "{count} 設定",
-    configuredMultiple: "設定済み",
     addConfig: "設定を追加",
     editConfig: "設定を編集",
     deleteConfig: "設定を削除",
-    setAsDefault: "デフォルトに設定",
-    defaultBadge: "デフォルト",
-    defaultDescription: "このプロバイダーのデフォルト設定",
     configName: "設定名",
     configNameHint: "この設定の説明的な名前（例：本番環境、開発環境）",
     baseUrl: "ベースURL",
-    baseUrlHint: "デフォルト：{url}",
     baseUrlOverrideHint: "プロバイダーのデフォルト API エンドポイントを上書きする場合のみ変更してください。",
-    ollamaApiKeyHint: "Ollama Cloud でのみ必要です。ローカル Ollama の場合は空のままにしてください。",
-    noConfigs: "設定がありません",
-    noConfigsHint: "このプロバイダーの使用を開始するには設定を追加してください",
     deleteConfigConfirm: "「{name}」を削除してもよろしいですか？この操作は元に戻せません。",
-    setDefaultConfirm: "「{name}」をデフォルト設定にしますか？",
     configSaveSuccess: "設定が正常に保存されました",
     configUpdateSuccess: "設定が正常に変更されました",
     configDeleteSuccess: "設定が正常に削除されました",
-    configSetDefaultSuccess: "デフォルト設定が更新されました",
-    apiKeyHint: "この設定のAPIキーを入力してください",
     apiKeyEditHint: "既存のAPIキーを維持するには空白のままにしてください",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/pt-BR/index.ts b/frontend/src/lib/locales/pt-BR/index.ts
index 6b700cc..1b657b8 100644
--- a/frontend/src/lib/locales/pt-BR/index.ts
+++ b/frontend/src/lib/locales/pt-BR/index.ts
@@ -36,22 +36,16 @@ export const ptBR = {
     warning: "Aviso",
     error: "Erro",
     success: "Sucesso",
-    sessions: "Sessões",
     model: "Modelo",
-    send: "Enviar",
     back: "Voltar",
     next: "Próximo",
     done: "Concluído",
     processing: "Processando...",
     creating: "Criando...",
-    tokenCount: "Tokens",
-    charCount: "Caracteres",
     linked: "Vinculado",
-    added: "Adicionado em {date}",
     adding: "Adicionando...",
     addSelected: "Adicionar Selecionados",
     customModel: "Modelo Personalizado",
-    messages: "Mensagens",
     failed: "falhou",
     current: "Atual",
     save: "Salvar",
@@ -72,7 +66,6 @@ export const ptBR = {
     unknown: "Desconhecido",
     notes: "Notas",
     chat: "Chat",
-    details: "Detalhes",
     deleteForever: "Excluir Permanentemente",
     connectionError: "Erro de Conexão",
     unableToConnect: "Não foi possível conectar ao servidor da API",
@@ -85,7 +78,6 @@ export const ptBR = {
     checkConsoleLogs: "Verifique o console do navegador para logs detalhados (procure por mensagens 🔧 [Config])",
     yes: "Sim",
     no: "Não",
-    simple: "Simples",
     saving: "Salvando...",
     description: "Descrição",
     saveToNote: "Salvar em nota",
@@ -103,7 +95,6 @@ export const ptBR = {
     nameRequired: "Nome é obrigatório",
     modelConfiguration: "Configuração do Modelo",
     resetToDefault: "Restaurar Padrão",
-    notFound: "Não encontrado",
     reasoning: "Raciocínio",
     searchTerms: "Termos de Busca",
     strategy: "Estratégia",
@@ -112,14 +103,12 @@ export const ptBR = {
     notebookLabel: "Caderno: {name}",
     itemNotFound: "Este {type} não foi encontrado",
     accessibility: {
-      navigation: "Navegação",
       transformationViews: "Visualizações de transformação",
       searchKB: "Perguntar ou buscar na base de conhecimento",
       enterQuestion: "Digite sua pergunta para a base de conhecimento",
       enterSearch: "Digite sua busca",
       searchKBBtn: "Buscar na base de conhecimento",
       podcastViews: "Visualizações de podcast",
-      chatSessions: "Sessões de chat",
       ytVideo: "Vídeo do YouTube",
       askResponse: "Resposta da Consulta",
       searchNotebooks: "Buscar cadernos",
@@ -127,9 +116,9 @@ export const ptBR = {
     url: "URL",
     errorDetails: "Detalhes do Erro",
     editTransformation: "Editar Transformação",
-    comingSoon: "Em breve",
     retry: "Tentar Novamente",
     traditionalChinese: "繁體中文",
+    portuguese: "Português",
     completed: "concluído",
     saveSuccess: "Salvo com sucesso",
     contextModes: {
@@ -139,7 +128,6 @@ export const ptBR = {
       clickToCycle: "Clique para alternar",
     },
     clickToEdit: "Clique para editar",
-    portuguese: "Português",
   },
   apiErrors: {
     notebookNotFound: "Caderno não encontrado",
@@ -165,7 +153,6 @@ export const ptBR = {
     failedToSendMessage: "Falha ao enviar mensagem",
     unauthorized: "Acesso não autorizado, verifique sua senha",
     invalidPassword: "Senha inválida",
-    missingAuth: "Autenticação ausente",
     embeddingModelRequired: "Este recurso requer um modelo de embedding. Configure um na seção Modelos.",
     strategyModelNotFound: "Modelo de estratégia não encontrado",
     answerModelNotFound: "Modelo de resposta não encontrado",
@@ -206,7 +193,6 @@ export const ptBR = {
     passwordPlaceholder: "Senha",
     signingIn: "Entrando...",
     signIn: "Entrar",
-    unhandledError: "Erro não tratado durante login",
     connectErrorHint: "Não foi possível conectar ao servidor. Verifique se a API está rodando.",
   },
   navigation: {
@@ -226,7 +212,6 @@ export const ptBR = {
     nav: "Navegação",
     language: "Alternar idioma",
     theme: "Tema",
-    search: "Buscar",
     ask: "Perguntar",
   },
   notebooks: {
@@ -248,12 +233,8 @@ export const ptBR = {
     keepExclusiveSourcesLabel: "Desvincular e manter",
     activeNotebooks: "Cadernos Ativos",
     archivedNotebooks: "Cadernos Arquivados",
-    emptyDescription: "Comece criando seu primeiro caderno para organizar sua pesquisa.",
-    noActiveNotebooks: "Nenhum caderno ativo",
-    noArchivedNotebooks: "Nenhum caderno arquivado",
     notFound: "Caderno não encontrado",
     notFoundDesc: "O caderno solicitado não existe.",
-    noDescription: "Sem descrição...",
     updated: "Atualizado",
     namePlaceholder: "Nome do caderno",
     addDescription: "Adicionar descrição...",
@@ -278,10 +259,7 @@ export const ptBR = {
     add: "Adicionar Fonte",
     addNew: "Adicionar Nova Fonte",
     addExisting: "Adicionar Fonte Existente",
-    empty: "Nenhuma fonte ainda",
-    emptyDesc: "Adicione sua primeira fonte para começar a construir sua base de conhecimento.",
     delete: "Excluir Fonte",
-    deleteMsg: "Tem certeza que deseja excluir esta fonte? Esta ação não pode ser desfeita.",
     statusPreparing: "Preparando",
     statusQueued: "Na Fila",
     statusProcessing: "Processando",
@@ -321,7 +299,6 @@ export const ptBR = {
     sourceRequeued: "Fonte Reenfileirada",
     sourceRequeuedDesc: "A fonte foi reenfileirada para processamento.",
     failedToRetry: "Falha ao Tentar Novamente",
-    failedToRetryDesc: "Falha ao tentar processar fonte novamente. Por favor, tente de novo.",
     sourcesAddedToNotebook: "{count} fonte(s) adicionada(s) ao caderno",
     failedToAddSourcesToNotebook: "Falha ao adicionar fontes ao caderno",
     partialAddSuccess: "{success} fonte(s) adicionada(s), {failed} falhou(aram)",
@@ -359,7 +336,6 @@ export const ptBR = {
     deleteInsight: "Excluir Insight",
     deleteInsightConfirm: "Tem certeza que deseja excluir este insight? Esta ação não pode ser desfeita.",
     insightGenerationStarted: "Geração de insight iniciada. Aparecerá em breve.",
-    deleteNoteConfirm: "Tem certeza que deseja excluir esta nota? Esta ação não pode ser desfeita.",
     editNote: "Editar nota",
     createNote: "Criar nota",
     addTitle: "Adicionar título...",
@@ -367,9 +343,7 @@ export const ptBR = {
     writeNotePlaceholder: "Escreva o conteúdo da sua nota aqui...",
     saveNote: "Salvar Nota",
     createNoteBtn: "Criar Nota",
-    noNotesYet: "Nenhuma nota ainda",
     createFirstNote: "Crie sua primeira nota para capturar insights e observações.",
-    deleteNote: "Excluir Nota",
     urlLabel: "URL(s) *",
     fileLabel: "Arquivo(s) *",
     textContentLabel: "Conteúdo de Texto *",
@@ -403,7 +377,6 @@ export const ptBR = {
     retryProcessing: "Tentar Processamento Novamente",
     deleteSource: "Excluir Fonte",
     retry: "Tentar Novamente",
-    progress: "Progresso",
     addExistingTitle: "Adicionar Fontes Existentes",
     addExistingDesc: "Selecione fontes existentes de todos os seus cadernos para adicionar ao atual.",
     searchPlaceholder: "Buscar fontes por nome ou URL...",
@@ -435,8 +408,6 @@ export const ptBR = {
     batchFailed: "Falha ao criar todas as {count} fontes",
     batchPartial: "{success} sucesso, {failed} falhou(aram)",
     submittingSource: "Enviando fonte para processamento...",
-    contentRequired: "Por favor, forneça o conteúdo necessário para o tipo de fonte selecionado",
-    titleRequiredForText: "Título é obrigatório para fontes de texto",
     processingBatchSources: "Processando {count} fontes. Isso pode levar alguns momentos.",
     processingSource: "Sua fonte está sendo processada. Isso pode levar alguns momentos.",
     maxFilesAllowed: "Máximo de {count} arquivos permitidos por lote",
@@ -445,16 +416,10 @@ export const ptBR = {
     sessions: "Sessões",
     sessionTitlePlaceholder: "Digite um título aqui...",
     noSessions: "Nenhuma sessão de chat ainda",
-    startChatting: "Comece a conversar sobre suas fontes.",
     deleteSession: "Excluir Sessão",
     deleteSessionDesc: "Tem certeza que deseja excluir esta sessão de chat? Esta ação não pode ser desfeita.",
     sendPlaceholder: "Pergunte qualquer coisa sobre suas fontes...",
-    newChat: "Novo Chat",
     sessionsTitle: "Sessões de Chat",
-    clearhistory: "Limpar Histórico",
-    renameSession: "Renomear Sessão",
-    noSourcesLinked: "Nenhuma fonte vinculada",
-    thinking: "IA está pensando...",
     chatWith: "Conversar com {name}",
     startConversation: "Inicie uma conversa sobre este {type}",
     askQuestions: "Faça perguntas para entender melhor o conteúdo",
@@ -508,8 +473,6 @@ export const ptBR = {
     saveSuccess: "Salvo no caderno com sucesso",
     saveError: "Falha ao salvar no caderno",
     selectNotebook: "Selecionar Caderno",
-    createNewNotebook: "Criar Novo Caderno",
-    cancel: "Cancelar",
     searchAndAsk: "Buscar e Perguntar",
     searchResultsFor: "Resultados da busca para \"{query}\"",
     askAbout: "Perguntar sobre \"{query}\"",
@@ -734,8 +697,6 @@ export const ptBR = {
     speakerCountMin: "Pelo menos um locutor é necessário",
     speakerCountMax: "Você pode configurar até 4 locutores",
     delete: "Excluir",
-    unknown: "Desconhecido",
-    deleteSuccess: "Podcast excluído com sucesso",
     failedToDelete: "Falha ao excluir podcast",
   },
   settings: {
@@ -772,13 +733,8 @@ export const ptBR = {
     title: "Ferramentas Avançadas",
     desc: "Ferramentas e utilitários avançados para usuários avançados",
     systemInfo: "Informações do Sistema",
-    systemInfoDesc: "Visualize o status dos componentes subjacentes do sistema",
     rebuildEmbeddings: "Reconstruir Embeddings",
     rebuildEmbeddingsDesc: "Reconstruir índice de busca vetorial para todas as fontes",
-    rebuildWarning: "Esta ação pode ser muito demorada dependendo do número de fontes que você tem. Ela limpará os índices vetoriais existentes e regerará embeddings para tudo.",
-    startRebuild: "Iniciar Reconstrução",
-    rebuilding: "Reconstruindo...",
-    rebuildSuccess: "Reconstrução de embedding iniciada com sucesso",
     currentVersion: "Versão Atual",
     latestVersion: "Última Versão",
     status: "Status",
@@ -823,10 +779,8 @@ export const ptBR = {
     defaultPrompt: "Prompt de Transformação Padrão",
     defaultPromptDesc: "Isso será adicionado a todos os seus prompts de transformação",
     defaultPromptPlaceholder: "Digite suas instruções padrão de transformação...",
-    saveDefault: "Salvar Padrão",
     listTitle: "Transformações Personalizadas",
     createNew: "Criar Nova",
-    testInPlayground: "Testar no Playground",
     inputLabel: "Texto de Entrada",
     inputPlaceholder: "Digite algum texto para transformar...",
     outputLabel: "Saída",
@@ -845,83 +799,33 @@ export const ptBR = {
     deleteSuccess: "Transformação excluída com sucesso",
     noTransformations: "Nenhuma transformação ainda",
     createOne: "Crie uma transformação para começar",
-    deleteDesc: "Excluir esta transformação não pode ser desfeito.",
     selectModel: "Selecione um modelo",
     deleteConfirm: "Tem certeza que deseja excluir esta transformação?",
     model: "Modelo",
     systemPrompt: "Prompt do Sistema",
-    type: "Tipo",
-    extraction: "Extração",
-    summary: "Resumo",
-    custom: "Personalizado",
-    saveChanges: "Salvar Alterações",
     overrideModelDesc: "Substitua o modelo padrão para esta sessão de chat. Deixe vazio para usar o padrão do sistema.",
     sessionUseReplacement: "Esta sessão usará {name} em vez do modelo padrão.",
     systemDefault: "Padrão do Sistema",
   },
   models: {
-    title: "Gerenciamento de Modelos",
-    desc: "Configure modelos de IA para diferentes propósitos no Open Notebook",
-    failedToLoad: "Falha ao carregar dados dos modelos",
-    language: "Modelos de Linguagem",
     embedding: "Modelos de Embedding",
     tts: "Text to Speech (TTS)",
     stt: "Speech to Text (STT)",
-    providers: "Provedores",
-    defaultModels: "Modelos Padrão",
-    status: "Status",
-    notConfigured: "Não configurado",
-    active: "Ativo",
-    inactive: "Inativo",
-    configure: "Configurar",
-    saveChanges: "Salvar Alterações",
-    addModel: "Adicionar Modelo",
-    modelName: "Nome do Modelo",
     provider: "Provedor",
     apiKey: "Chave da API",
-    baseUrl: "URL Base",
-    capabilities: "Capacidades",
-    enabled: "Habilitado",
-    disabled: "Desabilitado",
-    deleteConfirm: "Tem certeza que deseja excluir este modelo?",
     deleteSuccess: "Modelo excluído com sucesso",
     saveSuccess: "Modelo salvo com sucesso",
-    providerStatus: "Status do Provedor",
-    connectionOk: "Conexão OK",
-    connectionFailed: "Conexão falhou",
-    changeEmbeddingWarning: "Alterar o modelo de embedding padrão afetará novas fontes. Fontes existentes podem precisar ser reindexadas.",
-    changeEmbeddingTitle: "Alterar Modelo de Embedding Padrão?",
-    aiProviders: "Provedores de IA",
-    providerConfigDesc: "Configure provedores através de variáveis de ambiente para habilitar seus modelos.",
-    configuredCount: "{count} de {total} configurados",
     noModels: "Sem modelos",
-    learnMore: "Saiba como configurar provedores →",
-    seeLess: "Ver menos",
-    seeAll: "Ver todos os {count} provedores",
-    language_models: "Modelos de Linguagem",
-    embedding_models: "Modelos de Embedding",
-    text_to_speech: "Text to Speech (TTS)",
-    speech_to_text: "Speech to Text (STT)",
-    languageDesc: "Chat, transformações e geração de texto",
-    embeddingDesc: "Busca semântica e embeddings vetoriais",
-    ttsDesc: "Gerar áudio a partir de texto",
-    sttDesc: "Transcrever áudio para texto",
-    all: "Todos",
-    noModelsConfigured: "Nenhum modelo configurado",
-    noProviderModelsConfigured: "Nenhum modelo {provider} configurado",
-    showMore: "Mostrar mais {count}",
     discoverModels: "Descobrir Modelos",
     noModelsFound: "Nenhum modelo encontrado para este provedor",
     modelType: "Tipo do Modelo",
     modelTypeHint: "Selecione o tipo para os modelos que deseja adicionar. Se precisar de tipos diferentes, adicione em lotes separados.",
     deleteModel: "Excluir Modelo",
-    deleteModelDesc: "Tem certeza que deseja excluir \"{name}\"? Esta ação não pode ser desfeita.",
     defaultAssignments: "Atribuições de Modelo Padrão",
     defaultAssignmentsDesc: "Configure quais modelos usar para diferentes propósitos no Open Notebook",
     missingRequiredModels: "Modelos obrigatórios ausentes: {models}. O Open Notebook pode não funcionar corretamente sem eles.",
     selectModelPlaceholder: "Selecione um modelo",
     requiredModelPlaceholder: "⚠️ Obrigatório - Selecione um modelo",
-    whichModelToChoose: "Qual modelo devo escolher? →",
     chatModelLabel: "Modelo de Chat",
     chatModelDesc: "Usado para conversas de chat",
     transformationModelLabel: "Modelo de Transformação",
@@ -936,16 +840,9 @@ export const ptBR = {
     ttsModelDesc: "Usado para geração de podcast",
     sttModelLabel: "Modelo Speech-to-Text",
     sttModelDesc: "Usado para transcrição de áudio",
-    addSpecificModel: "Adicionar Modelo de {type}",
-    addSpecificModelDesc: "Configure um novo modelo de {type} dos provedores disponíveis.",
-    noProvidersForType: "Nenhum provedor disponível para modelos de {type}",
     selectProviderPlaceholder: "Selecione um provedor",
     providerRequired: "Provedor é obrigatório",
-    modelNameRequired: "Nome do modelo é obrigatório",
     modelRequired: "Modelo é obrigatório",
-    adding: "Adicionando...",
-    azureHint: "Para Azure, use o nome do deployment como nome do modelo",
-    enterModelName: "Digite o nome do modelo",
     embeddingChangeTitle: "Alteração de Modelo de Embedding",
     embeddingChangeConfirm: "Você está prestes a alterar seu modelo de embedding de {from} para {to}.",
     rebuildRequired: "Importante: Reconstrução Necessária",
@@ -959,7 +856,6 @@ export const ptBR = {
     changeModelOnly: "Apenas Alterar Modelo",
     changeAndRebuild: "Alterar e Ir para Reconstrução",
     autoAssign: "Atribuir Automaticamente",
-    autoAssignDesc: "Atribuir automaticamente o melhor modelo disponível para cada slot",
     autoAssigning: "Atribuindo...",
     autoAssignSuccess: "{count} modelos padrão atribuídos automaticamente",
     autoAssignNoModels: "Nenhum modelo disponível para atribuir. Por favor, sincronize os modelos primeiro.",
@@ -967,25 +863,16 @@ export const ptBR = {
     testModel: "Testar Modelo",
     testModelSuccess: "Teste do Modelo Passou",
     testModelFailed: "Teste do Modelo Falhou",
-    testingModel: "Testando modelo...",
     searchOrAddModel: "Pesquisar ou digitar nome do modelo...",
-    addCustomModel: 'Adicionar "{name}"',
+    addCustomModel: "Adicionar \"{name}\"",
   },
   apiKeys: {
     title: "Configure sua IA com suas próprias chaves de API",
     description: "Armazene chaves de API com segurança no banco de dados para habilitar provedores de IA no Open Notebook.",
-    loadFailed: "Falha ao carregar status das chaves de API",
     encryptionRequired: "Chave de criptografia não configurada",
     encryptionRequiredDescription: "Configure a variável de ambiente OPEN_NOTEBOOK_ENCRYPTION_KEY com qualquer string secreta para armazenar chaves de API no banco de dados.",
     configured: "Configurado",
     notConfigured: "Não configurado",
-    sourceDatabase: "Banco de dados",
-    sourceEnvironment: "Ambiente",
-    enterApiKey: "Digite sua chave de API",
-    enterBaseUrl: "Digite a URL base",
-    saveSuccess: "Chave de API salva com sucesso",
-    deleteSuccess: "Chave de API excluída com sucesso",
-    fromEnvironmentHint: "Esta chave é definida via variável de ambiente. Salve uma nova chave para sobrescrevê-la no banco de dados.",
     migrationAvailable: "Variáveis de Ambiente Detectadas",
     migrationDescription: "{count} chave(s) de API estão configuradas via variáveis de ambiente e podem ser migradas para o banco de dados para facilitar o gerenciamento.",
     migrateToDatabase: "Migrar para Banco de Dados",
@@ -993,67 +880,29 @@ export const ptBR = {
     migrationSuccess: "{count} chave(s) de API migrada(s) com sucesso",
     migrationErrors: "{count} chave(s) falhou ao migrar",
     migrationNothingToMigrate: "Todas as chaves já estão no banco de dados",
-    serviceType: "Tipo de Serviço",
-    serviceLlm: "Modelo de Linguagem (LLM)",
-    serviceEmbedding: "Embedding",
-    serviceStt: "Speech to Text (STT)",
-    serviceTts: "Text to Speech (TTS)",
-    serviceEndpoints: "Endpoints de Serviço (opcional)",
-    azureEndpointsHint: "Configure endpoints diferentes para cada tipo de serviço se necessário.",
-    endpointPlaceholder: "https://seu-recurso.openai.azure.com/",
-    openaiCompatibleHint: "Configure um endpoint de API compatível com OpenAI. Cada tipo de serviço pode ter sua própria configuração.",
-    baseUrlPlaceholder: "https://api.exemplo.com/v1",
     learnMore: "Saiba como configurar chaves de API →",
     testConnection: "Testar Conexão",
-    testing: "Testando...",
     testSuccess: "Conexão bem-sucedida",
     testFailed: "Falha no teste de conexão",
     syncModels: "Sincronizar Modelos",
-    syncing: "Sincronizando...",
     syncSuccess: "Descobertos {discovered} modelos, {new} novos adicionados",
     syncNoNew: "Descobertos {count} modelos, todos já registrados",
     syncFailed: "Falha ao sincronizar modelos",
-    syncAllModels: "Sincronizar Todos os Provedores",
-    syncAllSuccess: "Descobertos {discovered} modelos em todos os provedores, {new} novos adicionados",
-    modelsConfigured: "{count} modelos",
-    noModelsConfigured: "Sem modelos",
-    viewModels: "Ver Modelos",
-    supportedTypes: "Tipos suportados",
-    typeLanguage: "Linguagem",
-    typeEmbedding: "Embedding",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "Endpoint da API",
     getApiKey: "Obter Chave de API",
     vertexProject: "ID do Projeto GCP",
     vertexLocation: "Região",
     vertexCredentials: "Caminho do JSON da Conta de Serviço",
-    vertexCredentialsHint: "Caminho para o arquivo JSON da conta de serviço do Google Cloud dentro do contêiner.",
-
-    // Multi-config translations
-    configsCount: "{count} configurações",
-    configuredMultiple: "Configurado",
     addConfig: "Adicionar Configuração",
     editConfig: "Editar Configuração",
     deleteConfig: "Excluir Configuração",
-    setAsDefault: "Definir como Padrão",
-    defaultBadge: "Padrão",
-    defaultDescription: "Configuração padrão para este provedor",
     configName: "Nome da Configuração",
     configNameHint: "Um nome descritivo para esta configuração (ex.: 'Produção', 'Desenvolvimento')",
     baseUrl: "URL Base",
-    baseUrlHint: "Padrão: {url}",
     baseUrlOverrideHint: "Altere apenas se precisar sobrescrever o endpoint padrão do provedor.",
-    ollamaApiKeyHint: "Necessária apenas para Ollama Cloud. Deixe vazio para Ollama local.",
-    noConfigs: "Sem configurações ainda",
-    noConfigsHint: "Adicione uma configuração para começar a usar este provedor",
     deleteConfigConfirm: "Tem certeza de que deseja excluir '{name}'? Esta ação não pode ser desfeita.",
-    setDefaultConfirm: "Definir '{name}' como a configuração padrão?",
     configSaveSuccess: "Configuração salva com sucesso",
     configUpdateSuccess: "Configuração atualizada com sucesso",
     configDeleteSuccess: "Configuração excluída com sucesso",
-    configSetDefaultSuccess: "Configuração padrão atualizada",
-    apiKeyHint: "Digite sua chave de API para esta configuração",
     apiKeyEditHint: "Deixe em branco para manter a chave de API existente",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/ru-RU/index.ts b/frontend/src/lib/locales/ru-RU/index.ts
index 9cf1e1a..7410b81 100644
--- a/frontend/src/lib/locales/ru-RU/index.ts
+++ b/frontend/src/lib/locales/ru-RU/index.ts
@@ -36,22 +36,16 @@ export const ruRU = {
     warning: "Предупреждение",
     error: "Ошибка",
     success: "Успешно",
-    sessions: "Сессии",
     model: "Модель",
-    send: "Отправить",
     back: "Назад",
     next: "Далее",
     done: "Готово",
     processing: "Обработка...",
     creating: "Создание...",
-    tokenCount: "Токены",
-    charCount: "Символы",
     linked: "Связано",
-    added: "Добавлено {date}",
     adding: "Добавление...",
     addSelected: "Добавить выбранное",
     customModel: "Своя модель",
-    messages: "Сообщения",
     failed: "не удалось",
     current: "Текущий",
     save: "Сохранить",
@@ -72,7 +66,6 @@ export const ruRU = {
     unknown: "Неизвестно",
     notes: "Заметки",
     chat: "Чат",
-    details: "Подробности",
     deleteForever: "Удалить навсегда",
     connectionError: "Ошибка подключения",
     unableToConnect: "Не удаётся подключиться к API-серверу",
@@ -85,7 +78,6 @@ export const ruRU = {
     checkConsoleLogs: "Проверьте консоль браузера для подробных логов (ищите сообщения 🔧 [Config])",
     yes: "Да",
     no: "Нет",
-    simple: "Простой",
     saving: "Сохранение...",
     description: "Описание",
     saveToNote: "Сохранить в заметку",
@@ -103,7 +95,6 @@ export const ruRU = {
     nameRequired: "Название обязательно",
     modelConfiguration: "Настройка модели",
     resetToDefault: "Сбросить по умолчанию",
-    notFound: "Не найдено",
     reasoning: "Рассуждение",
     searchTerms: "Поисковые запросы",
     strategy: "Стратегия",
@@ -112,14 +103,12 @@ export const ruRU = {
     notebookLabel: "Блокнот: {name}",
     itemNotFound: "Этот {type} не найден",
     accessibility: {
-      navigation: "Навигация",
       transformationViews: "Представления трансформаций",
       searchKB: "Спросить или найти в базе знаний",
       enterQuestion: "Введите вопрос для базы знаний",
       enterSearch: "Введите поисковый запрос",
       searchKBBtn: "Поиск по базе знаний",
       podcastViews: "Представления подкастов",
-      chatSessions: "Сессии чата",
       ytVideo: "Видео YouTube",
       askResponse: "Ответ на запрос",
       searchNotebooks: "Поиск блокнотов",
@@ -127,7 +116,6 @@ export const ruRU = {
     url: "URL",
     errorDetails: "Детали ошибки",
     editTransformation: "Редактировать трансформацию",
-    comingSoon: "Скоро будет",
     retry: "Повторить",
     traditionalChinese: "繁體中文",
     portuguese: "Português",
@@ -165,7 +153,6 @@ export const ruRU = {
     failedToSendMessage: "Не удалось отправить сообщение",
     unauthorized: "Неавторизованный доступ, проверьте пароль",
     invalidPassword: "Неверный пароль",
-    missingAuth: "Отсутствует авторизация",
     embeddingModelRequired: "Для этой функции требуется модель эмбеддингов. Настройте её в разделе «Модели».",
     strategyModelNotFound: "Модель стратегии не найдена",
     answerModelNotFound: "Модель ответов не найдена",
@@ -206,7 +193,6 @@ export const ruRU = {
     passwordPlaceholder: "Пароль",
     signingIn: "Вход...",
     signIn: "Войти",
-    unhandledError: "Необработанная ошибка при входе",
     connectErrorHint: "Не удаётся подключиться к серверу. Проверьте, запущен ли API.",
   },
   navigation: {
@@ -226,7 +212,6 @@ export const ruRU = {
     nav: "Навигация",
     language: "Переключить язык",
     theme: "Тема",
-    search: "Поиск",
     ask: "Запрос",
   },
   notebooks: {
@@ -248,12 +233,8 @@ export const ruRU = {
     keepExclusiveSourcesLabel: "Отвязать и сохранить",
     activeNotebooks: "Активные блокноты",
     archivedNotebooks: "Архивные блокноты",
-    emptyDescription: "Начните с создания первого блокнота для организации исследований.",
-    noActiveNotebooks: "Нет активных блокнотов",
-    noArchivedNotebooks: "Нет архивных блокнотов",
     notFound: "Блокнот не найден",
     notFoundDesc: "Запрошенный блокнот не существует.",
-    noDescription: "Без описания...",
     updated: "Обновлено",
     namePlaceholder: "Название блокнота",
     addDescription: "Добавить описание...",
@@ -278,10 +259,7 @@ export const ruRU = {
     add: "Добавить источник",
     addNew: "Добавить новый источник",
     addExisting: "Добавить существующий источник",
-    empty: "Пока нет источников",
-    emptyDesc: "Добавьте первый источник, чтобы начать создание базы знаний.",
     delete: "Удалить источник",
-    deleteMsg: "Вы уверены, что хотите удалить этот источник? Это действие нельзя отменить.",
     statusPreparing: "Подготовка",
     statusQueued: "В очереди",
     statusProcessing: "Обработка",
@@ -321,7 +299,6 @@ export const ruRU = {
     sourceRequeued: "Повторная обработка в очереди",
     sourceRequeuedDesc: "Источник поставлен в очередь на повторную обработку.",
     failedToRetry: "Повтор не удался",
-    failedToRetryDesc: "Не удалось повторить обработку источника. Попробуйте ещё раз.",
     sourcesAddedToNotebook: "Добавлено источников в блокнот: {count}",
     failedToAddSourcesToNotebook: "Не удалось добавить источники в блокнот",
     partialAddSuccess: "Добавлено: {success}, не удалось: {failed}",
@@ -359,7 +336,6 @@ export const ruRU = {
     deleteInsight: "Удалить инсайт",
     deleteInsightConfirm: "Вы уверены, что хотите удалить этот инсайт? Это действие нельзя отменить.",
     insightGenerationStarted: "Генерация инсайта запущена. Скоро он появится.",
-    deleteNoteConfirm: "Вы уверены, что хотите удалить эту заметку? Это действие нельзя отменить.",
     editNote: "Редактировать заметку",
     createNote: "Создать заметку",
     addTitle: "Добавьте название...",
@@ -367,9 +343,7 @@ export const ruRU = {
     writeNotePlaceholder: "Напишите содержимое заметки здесь...",
     saveNote: "Сохранить заметку",
     createNoteBtn: "Создать заметку",
-    noNotesYet: "Пока нет заметок",
     createFirstNote: "Создайте первую заметку для записи идей и наблюдений.",
-    deleteNote: "Удалить заметку",
     urlLabel: "URL(ы) *",
     fileLabel: "Файл(ы) *",
     textContentLabel: "Текстовое содержимое *",
@@ -403,7 +377,6 @@ export const ruRU = {
     retryProcessing: "Повторить обработку",
     deleteSource: "Удалить источник",
     retry: "Повторить",
-    progress: "Прогресс",
     addExistingTitle: "Добавить существующие источники",
     addExistingDesc: "Выберите существующие источники из всех блокнотов для добавления в текущий.",
     searchPlaceholder: "Поиск источников по названию или URL...",
@@ -435,8 +408,6 @@ export const ruRU = {
     batchFailed: "Не удалось создать все источники: {count}",
     batchPartial: "Успешно: {success}, не удалось: {failed}",
     submittingSource: "Отправка источника на обработку...",
-    contentRequired: "Пожалуйста, предоставьте необходимое содержимое для выбранного типа источника",
-    titleRequiredForText: "Для текстовых источников требуется название",
     processingBatchSources: "Обработка источников: {count}. Это может занять некоторое время.",
     processingSource: "Источник обрабатывается. Это может занять некоторое время.",
     maxFilesAllowed: "Максимальное количество файлов в пакете: {count}",
@@ -445,16 +416,10 @@ export const ruRU = {
     sessions: "Сессии",
     sessionTitlePlaceholder: "Введите название...",
     noSessions: "Пока нет сессий чата",
-    startChatting: "Начните общение о ваших источниках.",
     deleteSession: "Удалить сессию",
     deleteSessionDesc: "Вы уверены, что хотите удалить эту сессию чата? Это действие нельзя отменить.",
     sendPlaceholder: "Задайте вопрос о ваших источниках...",
-    newChat: "Новый чат",
     sessionsTitle: "Сессии чата",
-    clearhistory: "Очистить историю",
-    renameSession: "Переименовать сессию",
-    noSourcesLinked: "Нет связанных источников",
-    thinking: "ИИ размышляет...",
     chatWith: "Чат с {name}",
     startConversation: "Начните разговор об этом {type}",
     askQuestions: "Задавайте вопросы, чтобы лучше понять содержимое",
@@ -508,8 +473,6 @@ export const ruRU = {
     saveSuccess: "Успешно сохранено в блокнот",
     saveError: "Не удалось сохранить в блокнот",
     selectNotebook: "Выберите блокнот",
-    createNewNotebook: "Создать новый блокнот",
-    cancel: "Отмена",
     searchAndAsk: "Поиск и запрос",
     searchResultsFor: "Результаты поиска для «{query}»",
     askAbout: "Спросить о «{query}»",
@@ -734,8 +697,6 @@ export const ruRU = {
     speakerCountMin: "Требуется минимум один говорящий",
     speakerCountMax: "Можно настроить до 4 говорящих",
     delete: "Удалить",
-    unknown: "Неизвестно",
-    deleteSuccess: "Подкаст успешно удалён",
     failedToDelete: "Не удалось удалить подкаст",
   },
   settings: {
@@ -772,13 +733,8 @@ export const ruRU = {
     title: "Дополнительные инструменты",
     desc: "Расширенные инструменты и утилиты для опытных пользователей",
     systemInfo: "Информация о системе",
-    systemInfoDesc: "Просмотр состояния системных компонентов",
     rebuildEmbeddings: "Пересоздать эмбеддинги",
     rebuildEmbeddingsDesc: "Пересоздать индекс векторного поиска для всех источников",
-    rebuildWarning: "Это действие может занять много времени в зависимости от количества источников. Существующие векторные индексы будут очищены и эмбеддинги будут созданы заново.",
-    startRebuild: "Начать пересоздание",
-    rebuilding: "Пересоздание...",
-    rebuildSuccess: "Пересоздание эмбеддингов успешно запущено",
     currentVersion: "Текущая версия",
     latestVersion: "Последняя версия",
     status: "Статус",
@@ -823,10 +779,8 @@ export const ruRU = {
     defaultPrompt: "Промпт трансформации по умолчанию",
     defaultPromptDesc: "Этот текст будет добавлен ко всем промптам трансформаций",
     defaultPromptPlaceholder: "Введите инструкции трансформации по умолчанию...",
-    saveDefault: "Сохранить по умолчанию",
     listTitle: "Пользовательские трансформации",
     createNew: "Создать новую",
-    testInPlayground: "Тестировать в песочнице",
     inputLabel: "Входной текст",
     inputPlaceholder: "Введите текст для трансформации...",
     outputLabel: "Результат",
@@ -845,83 +799,33 @@ export const ruRU = {
     deleteSuccess: "Трансформация успешно удалена",
     noTransformations: "Пока нет трансформаций",
     createOne: "Создайте трансформацию для начала",
-    deleteDesc: "Удаление трансформации нельзя отменить.",
     selectModel: "Выберите модель",
     deleteConfirm: "Вы уверены, что хотите удалить эту трансформацию?",
     model: "Модель",
     systemPrompt: "Системный промпт",
-    type: "Тип",
-    extraction: "Извлечение",
-    summary: "Резюме",
-    custom: "Пользовательский",
-    saveChanges: "Сохранить изменения",
     overrideModelDesc: "Переопределить модель по умолчанию для этой сессии чата. Оставьте пустым для использования системной модели.",
     sessionUseReplacement: "Эта сессия будет использовать {name} вместо модели по умолчанию.",
     systemDefault: "Системная по умолчанию",
   },
   models: {
-    title: "Управление моделями",
-    desc: "Настройте ИИ-модели для различных задач в Open Notebook",
-    failedToLoad: "Не удалось загрузить данные моделей",
-    language: "Языковые модели",
     embedding: "Модели эмбеддинга",
     tts: "Озвучивание (TTS)",
     stt: "Распознавание речи (STT)",
-    providers: "Провайдеры",
-    defaultModels: "Модели по умолчанию",
-    status: "Статус",
-    notConfigured: "Не настроено",
-    active: "Активно",
-    inactive: "Неактивно",
-    configure: "Настроить",
-    saveChanges: "Сохранить изменения",
-    addModel: "Добавить модель",
-    modelName: "Название модели",
     provider: "Провайдер",
     apiKey: "API-ключ",
-    baseUrl: "Базовый URL",
-    capabilities: "Возможности",
-    enabled: "Включено",
-    disabled: "Отключено",
-    deleteConfirm: "Вы уверены, что хотите удалить эту модель?",
     deleteSuccess: "Модель успешно удалена",
     saveSuccess: "Модель успешно сохранена",
-    providerStatus: "Статус провайдера",
-    connectionOk: "Подключение OK",
-    connectionFailed: "Ошибка подключения",
-    changeEmbeddingWarning: "Изменение модели эмбеддинга по умолчанию повлияет на новые источники. Существующие источники могут потребовать переиндексации.",
-    changeEmbeddingTitle: "Изменить модель эмбеддинга по умолчанию?",
-    aiProviders: "ИИ-провайдеры",
-    providerConfigDesc: "Настройте провайдеров через переменные окружения для включения их моделей.",
-    configuredCount: "Настроено {count} из {total}",
     noModels: "Нет моделей",
-    learnMore: "Узнать, как настроить провайдеров →",
-    seeLess: "Свернуть",
-    seeAll: "Показать все {count} провайдеров",
-    language_models: "Языковые модели",
-    embedding_models: "Модели эмбеддинга",
-    text_to_speech: "Озвучивание (TTS)",
-    speech_to_text: "Распознавание речи (STT)",
-    languageDesc: "Чат, трансформации и генерация текста",
-    embeddingDesc: "Семантический поиск и векторные эмбеддинги",
-    ttsDesc: "Генерация аудио из текста",
-    sttDesc: "Транскрибация аудио в текст",
-    all: "Все",
-    noModelsConfigured: "Модели не настроены",
-    noProviderModelsConfigured: "Модели {provider} не настроены",
-    showMore: "Показать ещё {count}",
     discoverModels: "Обнаружение моделей",
     noModelsFound: "Модели от этого провайдера не найдены",
     modelType: "Тип модели",
     modelTypeHint: "Выберите тип для добавляемых моделей. Если нужны разные типы, добавляйте их отдельными партиями.",
     deleteModel: "Удалить модель",
-    deleteModelDesc: "Вы уверены, что хотите удалить «{name}»? Это действие нельзя отменить.",
     defaultAssignments: "Назначение моделей по умолчанию",
     defaultAssignmentsDesc: "Настройте, какие модели использовать для различных задач в Open Notebook",
     missingRequiredModels: "Отсутствуют необходимые модели: {models}. Open Notebook может работать некорректно без них.",
     selectModelPlaceholder: "Выберите модель",
     requiredModelPlaceholder: "⚠️ Обязательно — выберите модель",
-    whichModelToChoose: "Какую модель выбрать? →",
     chatModelLabel: "Модель чата",
     chatModelDesc: "Используется для чат-разговоров",
     transformationModelLabel: "Модель трансформаций",
@@ -936,16 +840,9 @@ export const ruRU = {
     ttsModelDesc: "Используется для генерации подкастов",
     sttModelLabel: "Модель распознавания речи",
     sttModelDesc: "Используется для транскрибации аудио",
-    addSpecificModel: "Добавить модель {type}",
-    addSpecificModelDesc: "Настройте новую модель {type} от доступных провайдеров.",
-    noProvidersForType: "Нет доступных провайдеров для моделей {type}",
     selectProviderPlaceholder: "Выберите провайдера",
     providerRequired: "Требуется провайдер",
-    modelNameRequired: "Требуется название модели",
     modelRequired: "Требуется модель",
-    adding: "Добавление...",
-    azureHint: "Для Azure используйте название деплоймента как название модели",
-    enterModelName: "Введите название модели",
     embeddingChangeTitle: "Изменение модели эмбеддинга",
     embeddingChangeConfirm: "Вы собираетесь изменить модель эмбеддинга с {from} на {to}.",
     rebuildRequired: "Важно: Требуется пересоздание",
@@ -958,28 +855,24 @@ export const ruRU = {
     proceedToRebuildPrompt: "Хотите перейти на страницу «Дополнительно», чтобы начать пересоздание сейчас?",
     changeModelOnly: "Только изменить модель",
     changeAndRebuild: "Изменить и перейти к пересозданию",
+    autoAssign: "Автоназначение по умолчанию",
+    autoAssigning: "Назначение...",
+    autoAssignSuccess: "{count} моделей по умолчанию автоматически назначено",
+    autoAssignNoModels: "Нет доступных моделей для назначения. Сначала синхронизируйте модели.",
+    autoAssignAlreadySet: "Все модели по умолчанию уже настроены",
     testModel: "Тестировать модель",
     testModelSuccess: "Тест модели пройден",
     testModelFailed: "Тест модели не пройден",
-    testingModel: "Тестирование модели...",
     searchOrAddModel: "Поиск или введите имя модели...",
-    addCustomModel: 'Добавить "{name}"',
+    addCustomModel: "Добавить \"{name}\"",
   },
   apiKeys: {
     title: "Настройте ИИ с помощью собственных API-ключей",
     description: "Храните API-ключи в базе данных для безопасного подключения провайдеров ИИ в Open Notebook.",
-    loadFailed: "Не удалось загрузить статус API-ключей",
     encryptionRequired: "Ключ шифрования не настроен",
     encryptionRequiredDescription: "Установите переменную окружения OPEN_NOTEBOOK_ENCRYPTION_KEY в любую секретную строку для хранения API-ключей в базе данных.",
     configured: "Настроено",
     notConfigured: "Не настроено",
-    sourceDatabase: "База данных",
-    sourceEnvironment: "Переменная окружения",
-    enterApiKey: "Введите ваш API-ключ",
-    enterBaseUrl: "Введите базовый URL",
-    saveSuccess: "API-ключ успешно сохранён",
-    deleteSuccess: "API-ключ успешно удалён",
-    fromEnvironmentHint: "Этот ключ задан через переменную окружения. Сохраните новый ключ, чтобы переопределить его в базе данных.",
     migrationAvailable: "Обнаружены переменные окружения",
     migrationDescription: "{count} API-ключ(ей) настроено через переменные окружения и может быть перенесено в базу данных для удобного управления.",
     migrateToDatabase: "Перенести в базу данных",
@@ -987,67 +880,29 @@ export const ruRU = {
     migrationSuccess: "{count} API-ключ(ей) успешно перенесено",
     migrationErrors: "{count} ключ(ей) не удалось перенести",
     migrationNothingToMigrate: "Все ключи уже находятся в базе данных",
-    serviceType: "Тип сервиса",
-    serviceLlm: "Языковая модель (LLM)",
-    serviceEmbedding: "Эмбеддинг",
-    serviceStt: "Распознавание речи (STT)",
-    serviceTts: "Синтез речи (TTS)",
-    serviceEndpoints: "Эндпоинты сервисов (необязательно)",
-    azureEndpointsHint: "При необходимости настройте отдельные эндпоинты для каждого типа сервиса.",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "Настройте совместимый с OpenAI API-эндпоинт. Каждый тип сервиса может иметь собственную конфигурацию.",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "Узнайте, как настроить API-ключи →",
     testConnection: "Проверить подключение",
-    testing: "Проверка...",
     testSuccess: "Подключение успешно",
     testFailed: "Проверка подключения не удалась",
     syncModels: "Синхронизировать модели",
-    syncing: "Синхронизация...",
     syncSuccess: "Обнаружено {discovered} моделей, добавлено {new} новых",
     syncNoNew: "Обнаружено {count} моделей, все уже зарегистрированы",
     syncFailed: "Не удалось синхронизировать модели",
-    syncAllModels: "Синхронизировать всех провайдеров",
-    syncAllSuccess: "Обнаружено {discovered} моделей у всех провайдеров, добавлено {new} новых",
-    modelsConfigured: "{count} моделей",
-    noModelsConfigured: "Нет моделей",
-    viewModels: "Посмотреть модели",
-    supportedTypes: "Поддерживаемые типы",
-    typeLanguage: "Языковая",
-    typeEmbedding: "Эмбеддинг",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "API-эндпоинт",
     getApiKey: "Получить API-ключ",
     vertexProject: "ID проекта GCP",
     vertexLocation: "Регион",
     vertexCredentials: "Путь к JSON сервисного аккаунта",
-    vertexCredentialsHint: "Путь к JSON-файлу сервисного аккаунта Google Cloud внутри контейнера.",
-
-    // Мультиконфигурация
-    configsCount: "{count} конфигураций",
-    configuredMultiple: "Настроено",
     addConfig: "Добавить конфигурацию",
     editConfig: "Редактировать конфигурацию",
     deleteConfig: "Удалить конфигурацию",
-    setAsDefault: "Установить по умолчанию",
-    defaultBadge: "По умолчанию",
-    defaultDescription: "Конфигурация по умолчанию для этого провайдера",
     configName: "Название конфигурации",
     configNameHint: "Описательное название для этой конфигурации (например, «Продакшн», «Разработка»)",
     baseUrl: "Базовый URL",
-    baseUrlHint: "По умолчанию: {url}",
     baseUrlOverrideHint: "Изменяйте только если нужно переопределить стандартную конечную точку API провайдера.",
-    ollamaApiKeyHint: "Требуется только для Ollama Cloud. Оставьте пустым для локальной Ollama.",
-    noConfigs: "Конфигурации ещё не созданы",
-    noConfigsHint: "Добавьте конфигурацию, чтобы начать использовать этого провайдера",
     deleteConfigConfirm: "Вы уверены, что хотите удалить «{name}»? Это действие необратимо.",
-    setDefaultConfirm: "Установить «{name}» как конфигурацию по умолчанию?",
     configSaveSuccess: "Конфигурация успешно сохранена",
     configUpdateSuccess: "Конфигурация успешно обновлена",
     configDeleteSuccess: "Конфигурация успешно удалена",
-    configSetDefaultSuccess: "Конфигурация по умолчанию обновлена",
-    apiKeyHint: "Введите API-ключ для этой конфигурации",
     apiKeyEditHint: "Оставьте пустым, чтобы сохранить текущий API-ключ",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/zh-CN/index.ts b/frontend/src/lib/locales/zh-CN/index.ts
index ea0c5a7..8fbb2fe 100644
--- a/frontend/src/lib/locales/zh-CN/index.ts
+++ b/frontend/src/lib/locales/zh-CN/index.ts
@@ -1,16 +1,11 @@
 export const zhCN = {
   common: {
     search: "搜索...",
-    chat: '聊天',
-    notes: '笔记',
     create: "新建",
     new: "新建",
     cancel: "取消",
-    save: "保存",
-    nameRequired: "这是必填项",
     delete: "删除",
     edit: "编辑",
-    actions: "快捷操作",
     theme: "主题",
     signOut: "退出登录",
     noMatches: "未找到匹配项",
@@ -41,33 +36,27 @@ export const zhCN = {
     warning: "警告",
     error: "操作失败",
     success: "操作成功",
-    modelConfiguration: "模型配置",
-    resetToDefault: "重置为默认",
-    sessions: "会话",
     model: "模型",
-    send: "发送",
     back: "返回",
     next: "下一步",
     done: "完成",
     processing: "处理中...",
     creating: "创建中...",
-    tokenCount: "Token",
-    charCount: "字符",
     linked: "已关联",
-    added: "已于 {date} 添加",
     adding: "正在添加...",
     addSelected: "添加所选",
     customModel: "自定义模型",
-    messages: "消息",
     failed: "失败",
     current: "当前",
-    writeNote: '撰写笔记',
+    save: "保存",
+    writeNote: "撰写笔记",
     batchMode: "批量模式",
     optional: "可选",
     type: "类型",
     title: "标题",
     created: "创建于 {time}",
     updated: "更新于 {time}",
+    actions: "快捷操作",
     noResults: "未找到结果",
     references: "引用",
     refreshPage: "请重试刷新页面",
@@ -75,7 +64,8 @@ export const zhCN = {
     aiGenerated: "AI 生成",
     human: "人类",
     unknown: "未知",
-    details: "详情",
+    notes: "笔记",
+    chat: "聊天",
     deleteForever: "永久删除",
     connectionError: "连接错误",
     unableToConnect: "无法连接到 API 服务器",
@@ -88,7 +78,6 @@ export const zhCN = {
     checkConsoleLogs: "请检查浏览器控制台获取详细日志（搜索 🔧 [Config] 消息）",
     yes: "是",
     no: "否",
-    simple: "简单",
     saving: "正在保存...",
     description: "描述",
     saveToNote: "保存到笔记",
@@ -103,7 +92,9 @@ export const zhCN = {
     saveChanges: "保存更改",
     name: "名称",
     default: "默认",
-    notFound: "未找到",
+    nameRequired: "这是必填项",
+    modelConfiguration: "模型配置",
+    resetToDefault: "重置为默认",
     reasoning: "推理过程",
     searchTerms: "搜索词",
     strategy: "策略",
@@ -112,22 +103,19 @@ export const zhCN = {
     notebookLabel: "笔记本: {name}",
     itemNotFound: "未找到该 {type}",
     accessibility: {
-      navigation: "导航",
       transformationViews: "转换视图",
       searchKB: "向知识库提问或搜索",
-      searchNotebooks: "搜索笔记本",
       enterQuestion: "输入您的问题以询问知识库",
       enterSearch: "输入搜索词",
       searchKBBtn: "搜索知识库",
       podcastViews: "播客视图",
-      chatSessions: "对话 Session",
       ytVideo: "YouTube 视频",
       askResponse: "提问回答",
+      searchNotebooks: "搜索笔记本",
     },
     url: "URL",
     errorDetails: "错误详情",
     editTransformation: "编辑转换规则",
-    comingSoon: "敬请期待",
     retry: "重试",
     traditionalChinese: "繁体中文",
     portuguese: "葡萄牙语",
@@ -155,17 +143,16 @@ export const zhCN = {
     invalidSortOrder: "排序方向必须是 'asc' 或 'desc'",
     accessDenied: "文件访问被拒绝",
     fileNotFoundOnServer: "服务器上找不到该文件",
+    searchFailed: "搜索失败",
+    askFailed: "提问失败",
+    pleaseEnterQuestion: "请输入问题",
+    pleaseConfigureModels: "请配置所有必选模型",
     failedToCreateSession: "创建对话失败",
     failedToUpdateSession: "更新会话失败",
     failedToDeleteSession: "删除会话失败",
     failedToSendMessage: "发送消息失败",
-    pleaseEnterQuestion: "请输入问题",
-    pleaseConfigureModels: "请配置所有必选模型",
-    askFailed: "提问失败",
-    searchFailed: "搜索失败",
     unauthorized: "无权访问，请检查您的密码",
     invalidPassword: "密码错误",
-    missingAuth: "缺少身份验证信息",
     embeddingModelRequired: "此功能需要嵌入模型。请在模型设置中配置一个。",
     strategyModelNotFound: "未找到策略模型",
     answerModelNotFound: "未找到回答模型",
@@ -206,7 +193,6 @@ export const zhCN = {
     passwordPlaceholder: "密码",
     signingIn: "正在登录...",
     signIn: "登录",
-    unhandledError: "登录过程中出现未处理的错误",
     connectErrorHint: "无法连接到服务器。请检查 API 是否正在运行。",
   },
   navigation: {
@@ -217,8 +203,6 @@ export const zhCN = {
     sources: "来源",
     notebooks: "笔记本",
     askAndSearch: "询问与搜索",
-    search: "搜索",
-    ask: "提问",
     podcasts: "播客",
     models: "模型",
     transformations: "转换",
@@ -228,6 +212,7 @@ export const zhCN = {
     nav: "导航",
     language: "切换语言",
     theme: "主题",
+    ask: "提问",
   },
   notebooks: {
     title: "笔记本",
@@ -248,12 +233,8 @@ export const zhCN = {
     keepExclusiveSourcesLabel: "取消关联并保留",
     activeNotebooks: "活动的笔记本",
     archivedNotebooks: "归档的笔记本",
-    emptyDescription: "从创建您的第一个笔记本开始，组织您的研究。",
-    noActiveNotebooks: "没有活动的笔记本",
-    noArchivedNotebooks: "没有归档的笔记本",
     notFound: "未找到笔记本",
     notFoundDesc: "请求的笔记本不存在。",
-    noDescription: "暂无描述...",
     updated: "已更新",
     namePlaceholder: "笔记本名称",
     addDescription: "添加描述...",
@@ -278,12 +259,7 @@ export const zhCN = {
     add: "添加来源",
     addNew: "添加新来源",
     addExisting: "添加现有来源",
-    allSourcesDescShort: "在此查看所有来源。",
-    cannotSaveNoteNoNotebook: "无法保存笔记：缺少笔记本 ID",
-    empty: "暂无来源",
-    emptyDesc: "添加您的第一个来源，开始构建您的知识库。",
     delete: "删除来源",
-    deleteMsg: "确定要删除此来源吗？此操作无法撤销。",
     statusPreparing: "正在准备",
     statusQueued: "已排队",
     statusProcessing: "正在处理",
@@ -301,6 +277,11 @@ export const zhCN = {
     yes: "是",
     no: "否",
     loadingMore: "正在加载更多...",
+    noSourcesYet: "暂无来源",
+    allSourcesDescShort: "在此查看所有来源。",
+    cannotSaveNoteNoNotebook: "无法保存笔记：缺少笔记本 ID",
+    createFirstSource: "添加您的第一个来源开始构建知识库。",
+    deleteSourceConfirm: "确定要删除此来源吗？",
     deleteConfirm: "确定要删除吗？",
     deleteConfirmWithTitle: "确定要删除 \"{title}\" 吗？",
     deleteSuccess: "来源删除成功。注意：要从存储中删除文件，必须在设置页面中启用“删除文件”选项。",
@@ -318,16 +299,12 @@ export const zhCN = {
     sourceRequeued: "来源重试已加入队列",
     sourceRequeuedDesc: "来源已重新加入处理队列。",
     failedToRetry: "重试失败",
-    failedToRetryDesc: "重试来源处理失败。请重试。",
     sourcesAddedToNotebook: "{count} 个来源已添加到笔记本",
     failedToAddSourcesToNotebook: "添加来源到笔记本失败",
     partialAddSuccess: "{success} 个来源已添加，{failed} 个失败",
     sourceRemovedFromNotebook: "来源已成功从笔记本中移除",
     failedToRemoveSourceFromNotebook: "从笔记本中移除来源失败",
     removeConfirm: "确定要从此笔记本移除吗？",
-    noSourcesYet: "暂无来源",
-    createFirstSource: "添加您的第一个来源开始构建知识库。",
-    deleteSourceConfirm: "确定要删除此来源吗？",
     checking: "正在检查...",
     untitledSource: "未命名来源",
     maxItems: "最多 {count} 个",
@@ -356,25 +333,50 @@ export const zhCN = {
     noInsightsYet: "暂无见解",
     createFirstInsight: "使用上方的转换规则创建您的第一个见解",
     viewInsight: "查看见解",
+    deleteInsight: "删除见解",
+    deleteInsightConfirm: "确定要删除此见解吗？此操作无法撤销。",
+    insightGenerationStarted: "见解生成已开始，稍后将显示。",
+    editNote: "编辑笔记",
+    createNote: "创建笔记",
+    addTitle: "添加标题...",
+    untitledNote: "无标题笔记",
+    writeNotePlaceholder: "在此处编写您的笔记内容...",
+    saveNote: "保存笔记",
+    createNoteBtn: "创建笔记",
+    createFirstNote: "创建您的第一条笔记，记录见解与观察。",
+    urlLabel: "URL(s) *",
+    fileLabel: "文件(s) *",
+    textContentLabel: "文本内容 *",
+    enterUrlsPlaceholder: "每行输入一个 URL\nhttps://example.com/article1\nhttps://example.com/article2",
+    batchUrlHint: "粘贴多个 URL（每行一个）进行批量导入",
+    invalidUrlsDetected: "检测到无效的 URL：",
+    lineLabel: "第 {line} 行",
+    fixInvalidUrls: "请修正或移除无效的 URL 以继续",
+    selectMultipleFilesHint: "选择多个文件进行批量导入。支持：文档 (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD)，媒体 (MP4, MP3, WAV, M4A)，图片 (JPG, PNG)，归档 (ZIP)",
+    selectedFiles: "已选择文件：",
+    textPlaceholder: "在此处粘贴或输入您的内容...",
+    htmlDetected: "检测到 HTML 内容。处理后将转换为 Markdown。",
+    titlePlaceholder: "为您的来源起一个描述性的标题",
+    batchTitlesAuto: "将为每个来源自动生成标题。",
+    batchCommonSettings: "同样的笔记本和转换将应用于所有项目。",
+    urlsCount: "{count} 个 URL",
+    filesCount: "{count} 个文件",
+    addSource: "添加来源",
+    notEmbeddedAlert: "内容未嵌入向量",
+    notEmbeddedDesc: "此内容尚未为了向量搜索进行嵌入。嵌入可以启用高级搜索功能并更好地发现内容。",
+    openOnYoutube: "在 YouTube 上打开",
+    urlCopied: "URL 已复制到剪贴板",
     viewSource: "查看来源",
     noInsightSelected: "未选择见解",
     sourceInsight: "来源见解",
     manageNotebooks: "管理所属笔记本",
     manageNotebooksDesc: "管理包含此来源的笔记本",
     noNotebooksAvailable: "暂无可用笔记本",
-    deleteInsight: "删除见解",
-    deleteInsightConfirm: "确定要删除此见解吗？此操作无法撤销。",
-    insightGenerationStarted: "见解生成已开始，稍后将显示。",
-    notEmbeddedAlert: "内容未嵌入向量",
-    notEmbeddedDesc: "此内容尚未为了向量搜索进行嵌入。嵌入可以启用高级搜索功能并更好地发现内容。",
-    openOnYoutube: "在 YouTube 上打开",
-    urlCopied: "URL 已复制到剪贴板",
     loadFailed: "加载来源详情失败",
     removeFromNotebook: "从笔记本移除",
     retryProcessing: "重试处理",
     deleteSource: "删除来源",
     retry: "重试",
-    progress: "进度",
     addExistingTitle: "添加现有来源",
     addExistingDesc: "从您的所有笔记本中选择已有的来源添加到当前笔记本。",
     searchPlaceholder: "通过名称或 URL 搜索来源...",
@@ -382,35 +384,6 @@ export const zhCN = {
     showingFirst100: "仅显示前 100 个来源。请使用搜索功能查找特定来源。",
     selectedCount: "已选择 {count} 个来源",
     added: "已添加于 {date}",
-    noNotesYet: '暂无笔记',
-    createFirstNote: '创建您的第一条笔记，记录见解与观察。',
-    deleteNote: '删除笔记',
-    deleteNoteConfirm: '您确定要删除此笔记吗？此操作无法撤销。',
-    editNote: '编辑笔记',
-    createNote: '创建笔记',
-    addTitle: '添加标题...',
-    untitledNote: '无标题笔记',
-    writeNotePlaceholder: '在此处编写您的笔记内容...',
-    saveNote: '保存笔记',
-    createNoteBtn: '创建笔记',
-    urlLabel: 'URL(s) *',
-    fileLabel: '文件(s) *',
-    textContentLabel: '文本内容 *',
-    enterUrlsPlaceholder: '每行输入一个 URL\nhttps://example.com/article1\nhttps://example.com/article2',
-    batchUrlHint: '粘贴多个 URL（每行一个）进行批量导入',
-    invalidUrlsDetected: '检测到无效的 URL：',
-    lineLabel: '第 {line} 行',
-    fixInvalidUrls: '请修正或移除无效的 URL 以继续',
-    selectMultipleFilesHint: '选择多个文件进行批量导入。支持：文档 (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD)，媒体 (MP4, MP3, WAV, M4A)，图片 (JPG, PNG)，归档 (ZIP)',
-    selectedFiles: '已选择文件：',
-    textPlaceholder: '在此处粘贴或输入您的内容...',
-    htmlDetected: '检测到 HTML 内容。处理后将转换为 Markdown。',
-    titlePlaceholder: '为您的来源起一个描述性的标题',
-    batchTitlesAuto: '将为每个来源自动生成标题。',
-    batchCommonSettings: '同样的笔记本和转换将应用于所有项目。',
-    urlsCount: '{count} 个 URL',
-    filesCount: '{count} 个文件',
-    addSource: "添加来源",
     addUrl: "添加 URL",
     uploadFile: "上传文件",
     enterText: "输入文本",
@@ -435,8 +408,6 @@ export const zhCN = {
     batchFailed: "全部 {count} 个来源创建失败",
     batchPartial: "{success} 个成功，{failed} 个失败",
     submittingSource: "正在提交来源进行处理...",
-    contentRequired: "请提供所选来源类型所需的内容",
-    titleRequiredForText: "文本来源需要提供标题",
     processingBatchSources: "正在处理 {count} 个来源，请稍候...",
     processingSource: "正在处理您的来源，请稍候...",
     maxFilesAllowed: "每批最多允许 {count} 个文件",
@@ -445,26 +416,20 @@ export const zhCN = {
     sessions: "会话",
     sessionTitlePlaceholder: "在此输入标题...",
     noSessions: "暂无会话",
-    startChatting: "开始针对您的来源进行聊天。",
     deleteSession: "删除会话",
     deleteSessionDesc: "确定要删除此聊天会话吗？此操作无法撤销。",
     sendPlaceholder: "向您的来源提问...",
-    newChat: "新建对话",
     sessionsTitle: "对话列表",
-    clearhistory: "清空历史",
-    renameSession: "重命名会话",
-    noSourcesLinked: "未关联来源",
-    thinking: "AI 正在思考...",
     chatWith: "与{name}对话",
     startConversation: "开始针对{type}进行对话",
     askQuestions: "提出问题以更好地理解内容",
     pressToSend: "按 {key} 发送",
     model: "模型",
-    createToStart: '创建一个会话以开始。',
-    chatWithNotebook: '与笔记本对话',
-    unableToLoadChat: '无法加载聊天',
-    noDescription: '暂无描述',
-    startByCreating: '从创建您的第一个笔记本开始，组织您的研究。',
+    createToStart: "创建一个会话以开始。",
+    chatWithNotebook: "与笔记本对话",
+    unableToLoadChat: "无法加载聊天",
+    noDescription: "暂无描述",
+    startByCreating: "从创建您的第一个笔记本开始，组织您的研究。",
     messagesCount: "{count} 条消息",
     sessionCreated: "聊天会话已创建",
     sessionUpdated: "会话已更新",
@@ -508,8 +473,10 @@ export const zhCN = {
     saveSuccess: "成功保存到笔记本",
     saveError: "保存到笔记本失败",
     selectNotebook: "选择笔记本",
-    createNewNotebook: "创建新笔记本",
-    cancel: "取消",
+    searchAndAsk: "搜索与提问",
+    searchResultsFor: "搜索 “{query}”",
+    askAbout: "提问关于 “{query}”",
+    orSearchKb: "或搜索您的知识库",
     saving: "保存中...",
     advancedModelTitle: "高级模型选择",
     advancedModelDesc: "为提问过程的每个阶段选择特定的模型",
@@ -520,10 +487,6 @@ export const zhCN = {
     selectAnswerPlaceholder: "选择回答模型",
     selectFinalPlaceholder: "选择最终回答模型",
     saveChanges: "保存更改",
-    searchAndAsk: "搜索与提问",
-    searchResultsFor: "搜索 “{query}”",
-    askAbout: "提问关于 “{query}”",
-    orSearchKb: "或搜索您的知识库",
     processingQuestion: "正在处理您的问题...",
   },
   podcasts: {
@@ -637,8 +600,41 @@ export const zhCN = {
     createProfile: "创建简介",
     createSpeakerFirst: "在添加单集简介之前，请先创建一个发言人简介。",
     noEpisodeProfiles: "暂无单集简介。创建一个以启动播客生成。",
+    speakerCreated: "发言人配置已创建",
+    speakerCreatedDesc: "发言人配置已准备就绪。",
+    failedToCreateSpeaker: "创建发言人配置失败",
+    speakerUpdated: "发言人配置已更新",
+    speakerUpdatedDesc: "更改已成功保存。",
+    failedToUpdateSpeaker: "更新发言人配置失败",
+    speakerDeleted: "发言人配置已删除",
+    speakerDeletedDesc: "配置已成功移除。",
+    failedToDeleteSpeaker: "删除发言人配置失败",
+    speakerDuplicated: "发言人配置已复制",
+    speakerDuplicatedDesc: "已创建配置副本。",
+    failedToDuplicateSpeaker: "复制发言人配置失败",
+    generationStarted: "播客启动生成",
+    generationStartedDesc: "剧集 \"{name}\" 正在创建中。",
+    failedToStartGeneration: "启动播客生成失败",
+    tryAgainMoment: "请稍后再试。",
     deleteProfileTitle: "删除简介？",
     deleteProfileDesc: "这将移除 “{name}”。现有单集将保留其数据，但新单集将不再使用此配置。",
+    profileCreated: "剧集配置已创建",
+    profileCreatedDesc: "新的剧集配置已准备就绪。",
+    failedToCreateProfile: "创建剧集配置失败",
+    profileUpdated: "剧集配置已更新",
+    profileUpdatedDesc: "更改已成功保存。",
+    failedToUpdateProfile: "更新剧集配置失败",
+    profileDeleted: "剧集配置已删除",
+    profileDeletedDesc: "配置已成功移除。",
+    failedToDeleteProfile: "删除剧集配置失败",
+    failedToDeleteProfileDesc: "请确保配置未在使用中并重试。",
+    profileDuplicated: "剧集配置已复制",
+    profileDuplicatedDesc: "已创建配置副本。",
+    failedToDuplicateProfile: "复制剧集配置失败",
+    episodeDeleted: "剧集已删除",
+    episodeDeletedDesc: "播客剧集已成功移除。",
+    failedToDeleteEpisode: "删除剧集失败",
+    failedToDeleteSpeakerDesc: "请确保配置未在使用中并重试。",
     outlineModel: "大纲模型",
     transcriptModel: "脚本模型",
     segments: "分段数量",
@@ -701,42 +697,7 @@ export const zhCN = {
     speakerCountMin: "至少需要一个发言人",
     speakerCountMax: "最多只能配置 4 个发言人",
     delete: "删除",
-    unknown: "未知",
-    deleteSuccess: "播客删除成功",
     failedToDelete: "删除播客失败",
-    episodeDeleted: "剧集已删除",
-    episodeDeletedDesc: "播客剧集已成功移除。",
-    failedToDeleteEpisode: "删除剧集失败",
-    profileCreated: "剧集配置已创建",
-    profileCreatedDesc: "新的剧集配置已准备就绪。",
-    failedToCreateProfile: "创建剧集配置失败",
-    profileUpdated: "剧集配置已更新",
-    profileUpdatedDesc: "更改已成功保存。",
-    failedToUpdateProfile: "更新剧集配置失败",
-    profileDeleted: "剧集配置已删除",
-    profileDeletedDesc: "配置已成功移除。",
-    failedToDeleteProfile: "删除剧集配置失败",
-    failedToDeleteProfileDesc: "请确保配置未在使用中并重试。",
-    profileDuplicated: "剧集配置已复制",
-    profileDuplicatedDesc: "已创建配置副本。",
-    failedToDuplicateProfile: "复制剧集配置失败",
-    speakerCreated: "发言人配置已创建",
-    speakerCreatedDesc: "发言人配置已准备就绪。",
-    failedToCreateSpeaker: "创建发言人配置失败",
-    speakerUpdated: "发言人配置已更新",
-    speakerUpdatedDesc: "更改已成功保存。",
-    failedToUpdateSpeaker: "更新发言人配置失败",
-    speakerDeleted: "发言人配置已删除",
-    speakerDeletedDesc: "配置已成功移除。",
-    failedToDeleteSpeaker: "删除发言人配置失败",
-    failedToDeleteSpeakerDesc: "请确保配置未在使用中并重试。",
-    speakerDuplicated: "发言人配置已复制",
-    speakerDuplicatedDesc: "已创建配置副本。",
-    failedToDuplicateSpeaker: "复制发言人配置失败",
-    generationStarted: "播客启动生成",
-    generationStartedDesc: "剧集 \"{name}\" 正在创建中。",
-    failedToStartGeneration: "启动播客生成失败",
-    tryAgainMoment: "请稍后再试。",
   },
   settings: {
     contentProcessing: "内容处理",
@@ -772,13 +733,8 @@ export const zhCN = {
     title: "高级工具",
     desc: "面向进阶用户的调试和实用工具",
     systemInfo: "系统信息",
-    systemInfoDesc: "查看底层系统组件的状态",
     rebuildEmbeddings: "重建索引",
     rebuildEmbeddingsDesc: "为所有来源重建向量索引",
-    rebuildWarning: "此操作可能非常耗时，具体取决于您的来源数量。它将清除现有的向量索引并重新为所有内容生成嵌入。",
-    startRebuild: "开始重建",
-    rebuilding: "正在重建...",
-    rebuildSuccess: "索引重建已成功启动",
     currentVersion: "当前版本",
     latestVersion: "最新版本",
     status: "状态",
@@ -823,105 +779,53 @@ export const zhCN = {
     defaultPrompt: "默认全局提示词",
     defaultPromptDesc: "该提示词将被添加到您所有的转换提示词中",
     defaultPromptPlaceholder: "输入您的默认转换指令...",
-    saveDefault: "保存默认设置",
     listTitle: "自定义转换",
     createNew: "新建转换",
-    testInPlayground: "在实验室测试",
     inputLabel: "输入文本",
-    inputPlaceholder: '请输入要转换的文本...',
-    outputLabel: '输出',
-    runTest: '运行转换',
-    running: '运行中...',
-    selectToStart: '选择一个转换规则开始',
-    name: '名称',
-    namePlaceholder: '唯一标识符，例如 key_topics',
-    titlePlaceholder: '显示名称，默认为名称',
-    promptPlaceholder: '编写驱动此转换的提示词...',
-    descriptionPlaceholder: '描述此转换的作用。',
-    suggestDefault: '新来源默认建议',
-    promptHint: '提示词应根据源内容编写。您可以要求模型总结、提取见解或生成表格等结构化输出。',
-    createSuccess: '转换规则创建成功',
-    updateSuccess: '转换规则更新成功',
-    deleteSuccess: '转换规则删除成功',
+    inputPlaceholder: "请输入要转换的文本...",
+    outputLabel: "输出",
+    runTest: "运行转换",
+    running: "运行中...",
+    selectToStart: "选择一个转换规则开始",
+    name: "名称",
+    namePlaceholder: "唯一标识符，例如 key_topics",
+    titlePlaceholder: "显示名称，默认为名称",
+    promptPlaceholder: "编写驱动此转换的提示词...",
+    descriptionPlaceholder: "描述此转换的作用。",
+    suggestDefault: "新来源默认建议",
+    promptHint: "提示词应根据源内容编写。您可以要求模型总结、提取见解或生成表格等结构化输出。",
+    createSuccess: "转换规则创建成功",
+    updateSuccess: "转换规则更新成功",
+    deleteSuccess: "转换规则删除成功",
     noTransformations: "暂无转换规则",
     createOne: "创建一个转换规则以开始",
-    deleteDesc: "删除此转换无法撤销。",
     selectModel: "选择模型",
     deleteConfirm: "确定要删除此转换规则吗？",
     model: "模型",
     systemPrompt: "系统提示词",
-    type: "类型",
-    extraction: "提取",
-    summary: "摘要",
-    custom: "自定义",
-    saveChanges: "保存更改",
     overrideModelDesc: "为此聊天会话覆盖默认模型。留空则使用系统默认。",
     sessionUseReplacement: "此会话将使用 {name} 而不是默认模型。",
     systemDefault: "系统默认",
   },
   models: {
-    title: "模型管理",
-    desc: "配置用于 Open Notebook 不同用途的 AI 模型",
-    failedToLoad: "加载模型数据失败",
-    language: "语言模型",
     embedding: "嵌入模型",
     tts: "文字转语音",
     stt: "语音转文字",
-    providers: "服务商",
-    defaultModels: "默认模型",
-    status: "状态",
-    notConfigured: "未配置",
-    active: "活动",
-    inactive: "不活动",
-    configure: "配置",
-    saveChanges: "保存更改",
-    addModel: "添加模型",
-    modelName: "模型名称",
     provider: "服务商",
     apiKey: "API 密钥",
-    baseUrl: "基础 URL",
-    capabilities: "功能",
-    enabled: "已启用",
-    disabled: "已禁用",
-    deleteConfirm: "确定要删除此模型吗？",
     deleteSuccess: "模型删除成功",
     saveSuccess: "模型保存成功",
-    providerStatus: "服务商状态",
-    connectionOk: "连接正常",
-    connectionFailed: "连接失败",
-    changeEmbeddingWarning: "更改默认嵌入模型将影响新的来源。现有来源可能需要重建索引。",
-    changeEmbeddingTitle: "更改默认嵌入模型？",
-    aiProviders: "AI 服务商",
-    providerConfigDesc: "通过环境变量配置服务商以启用其模型。",
-    configuredCount: "已配置 {count} / {total}",
     noModels: "暂无模型",
-    learnMore: "了解如何配置服务商 →",
-    seeLess: "收起",
-    seeAll: "查看全部 {count} 个服务商",
-    language_models: "语言模型",
-    embedding_models: "嵌入模型",
-    text_to_speech: "文字转语音",
-    speech_to_text: "语音转文字",
-    languageDesc: "聊天、内容转换和文本生成",
-    embeddingDesc: "语义搜索和向量嵌入",
-    ttsDesc: "根据文本生成音频",
-    sttDesc: "将语音转录为文本",
-    all: "全部",
-    noModelsConfigured: "未配置模型",
-    noProviderModelsConfigured: "未配置 {provider} 模型",
-    showMore: "显示更多 ({count})",
     discoverModels: "发现模型",
     noModelsFound: "未从此提供商找到模型",
     modelType: "模型类型",
     modelTypeHint: "选择要添加的模型类型。如果需要不同类型，请分批添加。",
     deleteModel: "删除模型",
-    deleteModelDesc: "确定要删除模型 “{name}” 吗？该操作无法撤销。",
     defaultAssignments: "默认模型分配",
     defaultAssignmentsDesc: "配置用于 Open Notebook 不同用途的默认模型",
     missingRequiredModels: "缺少必需的模型：{models}。如果没有这些模型，Open Notebook 可能无法正常运行。",
     selectModelPlaceholder: "选择一个模型",
     requiredModelPlaceholder: "⚠️ 必需 - 请选择一个模型",
-    whichModelToChoose: "我该选择哪个模型？→",
     chatModelLabel: "聊天模型",
     chatModelDesc: "用于聊天对话",
     transformationModelLabel: "转换模型",
@@ -936,16 +840,9 @@ export const zhCN = {
     ttsModelDesc: "用于生成播客",
     sttModelLabel: "语音转文字模型",
     sttModelDesc: "用于音频转录",
-    addSpecificModel: "添加 {type} 模型",
-    addSpecificModelDesc: "从可用服务商配置一个新的 {type} 模型。",
-    noProvidersForType: "暂无可用于 {type} 模型的服务商",
     selectProviderPlaceholder: "选择服务商",
     providerRequired: "服务商是必填项",
-    modelNameRequired: "模型名称是必填项",
     modelRequired: "模型是必填项",
-    adding: "正在添加...",
-    azureHint: "对于 Azure，请使用部署名称作为模型名称",
-    enterModelName: "输入模型名称",
     embeddingChangeTitle: "嵌入模型变更",
     embeddingChangeConfirm: "您即将将嵌入模型从 {from} 更改为 {to}。",
     rebuildRequired: "重要提示：需要重建索引",
@@ -959,7 +856,6 @@ export const zhCN = {
     changeModelOnly: "仅更改模型",
     changeAndRebuild: "更改并前往重建",
     autoAssign: "自动分配默认值",
-    autoAssignDesc: "为每个槽位自动分配最佳可用模型",
     autoAssigning: "正在分配...",
     autoAssignSuccess: "已自动分配 {count} 个默认模型",
     autoAssignNoModels: "没有可分配的模型。请先同步模型。",
@@ -967,25 +863,16 @@ export const zhCN = {
     testModel: "测试模型",
     testModelSuccess: "模型测试通过",
     testModelFailed: "模型测试失败",
-    testingModel: "正在测试模型...",
     searchOrAddModel: "搜索或输入模型名称...",
-    addCustomModel: '添加 "{name}"',
+    addCustomModel: "添加 \"{name}\"",
   },
   apiKeys: {
     title: "使用您自己的 API 密钥配置 AI",
     description: "将 API 密钥安全地存储在数据库中，以在 Open Notebook 中启用 AI 服务商。",
-    loadFailed: "加载 API 密钥状态失败",
     encryptionRequired: "未配置加密密钥",
     encryptionRequiredDescription: "请将 OPEN_NOTEBOOK_ENCRYPTION_KEY 环境变量设置为任意密钥字符串，以启用将 API 密钥存储到数据库。",
     configured: "已配置",
     notConfigured: "未配置",
-    sourceDatabase: "数据库",
-    sourceEnvironment: "环境变量",
-    enterApiKey: "输入您的 API 密钥",
-    enterBaseUrl: "输入基础 URL",
-    saveSuccess: "API 密钥保存成功",
-    deleteSuccess: "API 密钥删除成功",
-    fromEnvironmentHint: "此密钥通过环境变量设置。保存新密钥将在数据库中覆盖它。",
     migrationAvailable: "检测到环境变量",
     migrationDescription: "{count} 个 API 密钥通过环境变量配置，可以迁移到数据库以便于管理。",
     migrateToDatabase: "迁移到数据库",
@@ -993,67 +880,29 @@ export const zhCN = {
     migrationSuccess: "{count} 个 API 密钥迁移成功",
     migrationErrors: "{count} 个密钥迁移失败",
     migrationNothingToMigrate: "所有密钥已在数据库中",
-    serviceType: "服务类型",
-    serviceLlm: "语言模型 (LLM)",
-    serviceEmbedding: "嵌入",
-    serviceStt: "语音转文字 (STT)",
-    serviceTts: "文字转语音 (TTS)",
-    serviceEndpoints: "服务端点（可选）",
-    azureEndpointsHint: "如有需要，为每种服务类型配置不同的端点。",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "配置 OpenAI 兼容的 API 端点。每种服务类型可以有自己的配置。",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "了解如何配置 API 密钥 →",
     testConnection: "测试连接",
-    testing: "测试中...",
     testSuccess: "连接成功",
     testFailed: "连接测试失败",
     syncModels: "同步模型",
-    syncing: "同步中...",
     syncSuccess: "发现 {discovered} 个模型，新增 {new} 个",
     syncNoNew: "发现 {count} 个模型，全部已注册",
     syncFailed: "同步模型失败",
-    syncAllModels: "同步所有提供商",
-    syncAllSuccess: "在所有提供商中发现 {discovered} 个模型，新增 {new} 个",
-    modelsConfigured: "{count} 个模型",
-    noModelsConfigured: "无模型",
-    viewModels: "查看模型",
-    supportedTypes: "支持的类型",
-    typeLanguage: "语言",
-    typeEmbedding: "嵌入",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "API 端点",
     getApiKey: "获取 API 密钥",
     vertexProject: "GCP 项目 ID",
     vertexLocation: "区域",
     vertexCredentials: "服务账户 JSON 路径",
-    vertexCredentialsHint: "容器内 Google Cloud 服务账户 JSON 文件的路径。",
-
-    // Multi-config translations
-    configsCount: "{count} 个配置",
-    configuredMultiple: "已配置",
     addConfig: "添加配置",
     editConfig: "编辑配置",
     deleteConfig: "删除配置",
-    setAsDefault: "设为默认",
-    defaultBadge: "默认",
-    defaultDescription: "此提供商的默认配置",
     configName: "配置名称",
     configNameHint: "此配置的描述性名称（例如：'生产环境'、'开发环境'）",
     baseUrl: "基础 URL",
-    baseUrlHint: "默认：{url}",
     baseUrlOverrideHint: "仅在需要覆盖提供商默认 API 端点时更改此项。",
-    ollamaApiKeyHint: "仅 Ollama Cloud 需要 API 密钥。本地 Ollama 请留空。",
-    noConfigs: "暂无配置",
-    noConfigsHint: "添加配置以开始使用此提供商",
     deleteConfigConfirm: "确定要删除 '{name}' 吗？此操作无法撤销。",
-    setDefaultConfirm: "将 '{name}' 设为默认配置？",
     configSaveSuccess: "配置保存成功",
     configUpdateSuccess: "配置更新成功",
     configDeleteSuccess: "配置删除成功",
-    configSetDefaultSuccess: "默认配置已更新",
-    apiKeyHint: "输入此配置的 API 密钥",
     apiKeyEditHint: "留空以保留现有 API 密钥",
   },
   setupBanner: {
diff --git a/frontend/src/lib/locales/zh-TW/index.ts b/frontend/src/lib/locales/zh-TW/index.ts
index 3d7c128..6e25ba4 100644
--- a/frontend/src/lib/locales/zh-TW/index.ts
+++ b/frontend/src/lib/locales/zh-TW/index.ts
@@ -1,29 +1,24 @@
 export const zhTW = {
   common: {
     search: "搜尋...",
-    chat: '聊天',
-    notes: '筆記',
     create: "新增",
     new: "新建",
     cancel: "取消",
-    save: "儲存",
     delete: "刪除",
     edit: "編輯",
-    actions: "快捷操作",
     theme: "主題",
     signOut: "登出",
+    noMatches: "沒有找到匹配項",
+    tryDifferentSearch: "請嘗試使用不同的關鍵詞搜尋。",
+    light: "亮色",
+    dark: "暗色",
+    system: "系統",
     loading: "載入中...",
     note: "筆記",
     insight: "洞察",
     newSource: "新增來源",
     newNotebook: "新增筆記本",
     newPodcast: "新增播客",
-    nameRequired: "此為必填項",
-    noMatches: "沒有找到匹配項",
-    tryDifferentSearch: "請嘗試使用不同的關鍵詞搜尋。",
-    light: "亮色",
-    dark: "暗色",
-    system: "系統",
     language: "語言",
     english: "English",
     chinese: "簡體中文",
@@ -41,31 +36,27 @@ export const zhTW = {
     warning: "警告",
     error: "錯誤",
     success: "成功",
-    sessions: "對話",
     model: "模型",
-    send: "發送",
     back: "返回",
     next: "下一步",
     done: "完成",
     processing: "處理中...",
     creating: "正在新增...",
-    tokenCount: "Token",
-    charCount: "字元",
     linked: "已連結",
-    added: "已於 {date} 新增",
     adding: "正在新增...",
     addSelected: "新增所選",
     customModel: "自訂模型",
-    messages: "訊息",
     failed: "失敗",
     current: "目前",
-    writeNote: '撰寫筆記',
+    save: "儲存",
+    writeNote: "撰寫筆記",
     batchMode: "批次模式",
     optional: "可選",
     type: "類型",
     title: "標題",
     created: "建立於 {time}",
     updated: "更新於 {time}",
+    actions: "快捷操作",
     noResults: "未找到結果",
     references: "引用",
     refreshPage: "請嘗試重新整理頁面",
@@ -73,7 +64,8 @@ export const zhTW = {
     aiGenerated: "AI 生成",
     human: "人類",
     unknown: "未知",
-    details: "詳情",
+    notes: "筆記",
+    chat: "聊天",
     deleteForever: "永久刪除",
     connectionError: "連線錯誤",
     unableToConnect: "無法連線至 API 伺服器",
@@ -86,7 +78,6 @@ export const zhTW = {
     checkConsoleLogs: "請檢查瀏覽器主控台以獲取詳細日誌（搜尋 🔧 [Config] 訊息）",
     yes: "是",
     no: "否",
-    simple: "簡單",
     saving: "正在儲存...",
     description: "描述",
     saveToNote: "儲存到筆記",
@@ -101,9 +92,9 @@ export const zhTW = {
     saveChanges: "儲存更改",
     name: "名稱",
     default: "預設",
+    nameRequired: "此為必填項",
     modelConfiguration: "模型設定",
     resetToDefault: "重置為預設",
-    notFound: "未找到",
     reasoning: "推理過程",
     searchTerms: "搜尋詞",
     strategy: "策略",
@@ -112,22 +103,19 @@ export const zhTW = {
     notebookLabel: "筆記本: {name}",
     itemNotFound: "未找到該 {type}",
     accessibility: {
-      navigation: "導覽",
       transformationViews: "轉換視圖",
       searchKB: "向知識庫提問或搜尋",
-      searchNotebooks: "搜尋筆記本",
       enterQuestion: "輸入您的問題以詢問知識庫",
       enterSearch: "輸入搜尋詞",
       searchKBBtn: "搜尋知識庫",
       podcastViews: "播客視圖",
-      chatSessions: "對話 Session",
       ytVideo: "YouTube 影片",
       askResponse: "提問回答",
+      searchNotebooks: "搜尋筆記本",
     },
     url: "URL",
     errorDetails: "錯誤詳情",
     editTransformation: "編輯轉換規則",
-    comingSoon: "敬請期待",
     retry: "重試",
     traditionalChinese: "繁體中文",
     portuguese: "葡萄牙語",
@@ -155,17 +143,16 @@ export const zhTW = {
     invalidSortOrder: "排序方向必須是 'asc' 或 'desc'",
     accessDenied: "檔案存取被拒絕",
     fileNotFoundOnServer: "伺服器上找不到該檔案",
+    searchFailed: "搜尋失敗",
+    askFailed: "提問失敗",
+    pleaseEnterQuestion: "請輸入問題",
+    pleaseConfigureModels: "請設定所有必選模型",
     failedToCreateSession: "新增對話失敗",
     failedToUpdateSession: "更新對話失敗",
     failedToDeleteSession: "刪除對話失敗",
     failedToSendMessage: "發送訊息失敗",
-    pleaseEnterQuestion: "請輸入問題",
-    pleaseConfigureModels: "請設定所有必選模型",
-    askFailed: "提問失敗",
-    searchFailed: "搜尋失敗",
     unauthorized: "無權存取，請檢查您的密碼",
     invalidPassword: "密碼錯誤",
-    missingAuth: "缺少身分驗證資訊",
     embeddingModelRequired: "此功能需要嵌入模型。請在模型設定中設定一個。",
     strategyModelNotFound: "未找到策略模型",
     answerModelNotFound: "未找到回答模型",
@@ -206,7 +193,6 @@ export const zhTW = {
     passwordPlaceholder: "密碼",
     signingIn: "正在登入...",
     signIn: "登入",
-    unhandledError: "登入過程中出現未處理的錯誤",
     connectErrorHint: "無法連線至伺服器。請檢查 API 是否正在運行。",
   },
   navigation: {
@@ -217,8 +203,6 @@ export const zhTW = {
     sources: "來源",
     notebooks: "筆記本",
     askAndSearch: "詢問與搜尋",
-    search: "搜尋",
-    ask: "提問",
     podcasts: "播客",
     models: "模型",
     transformations: "轉換",
@@ -228,6 +212,7 @@ export const zhTW = {
     nav: "導覽",
     language: "切換語言",
     theme: "主題",
+    ask: "提問",
   },
   notebooks: {
     title: "筆記本",
@@ -248,12 +233,8 @@ export const zhTW = {
     keepExclusiveSourcesLabel: "取消關聯並保留",
     activeNotebooks: "活動中的筆記本",
     archivedNotebooks: "封存的筆記本",
-    emptyDescription: "從新增您的第一個筆記本開始，組織您的研究。",
-    noActiveNotebooks: "沒有活動中的筆記本",
-    noArchivedNotebooks: "沒有封存的筆記本",
     notFound: "未找到筆記本",
     notFoundDesc: "請求的筆記本不存在。",
-    noDescription: "暫無描述...",
     updated: "已更新",
     namePlaceholder: "筆記本名稱",
     addDescription: "新增描述...",
@@ -278,12 +259,7 @@ export const zhTW = {
     add: "新增來源",
     addNew: "新增新來源",
     addExisting: "新增現有來源",
-    allSourcesDescShort: "在此檢視所有來源。",
-    cannotSaveNoteNoNotebook: "無法儲存筆記：缺少筆記本 ID",
-    empty: "暫無來源",
-    emptyDesc: "新增您的第一個來源，開始構建您的知識庫。",
     delete: "刪除來源",
-    deleteMsg: "確定要刪除此來源嗎？此操作無法撤銷。",
     statusPreparing: "正在準備",
     statusQueued: "已排隊",
     statusProcessing: "正在處理",
@@ -301,6 +277,11 @@ export const zhTW = {
     yes: "是",
     no: "否",
     loadingMore: "正在載入更多...",
+    noSourcesYet: "暫無來源",
+    allSourcesDescShort: "在此檢視所有來源。",
+    cannotSaveNoteNoNotebook: "無法儲存筆記：缺少筆記本 ID",
+    createFirstSource: "新增您的第一個來源開始構建知識庫。",
+    deleteSourceConfirm: "確定要刪除此來源嗎？",
     deleteConfirm: "確定要刪除嗎？",
     deleteConfirmWithTitle: "確定要刪除 \"{title}\" 嗎？",
     deleteSuccess: "來源刪除成功。注意：要從儲存中刪除檔案，必須在設定頁面中啟用「刪除檔案」選項。",
@@ -318,16 +299,12 @@ export const zhTW = {
     sourceRequeued: "來源重試已加入隊列",
     sourceRequeuedDesc: "來源已重新加入處理隊列。",
     failedToRetry: "重試失敗",
-    failedToRetryDesc: "重試來源處理失敗。請重試。",
     sourcesAddedToNotebook: "{count} 個來源已新增到筆記本",
     failedToAddSourcesToNotebook: "新增來源到筆記本失敗",
     partialAddSuccess: "{success} 個來源已新增，{failed} 個失敗",
     sourceRemovedFromNotebook: "來源已成功從筆記本中移除",
     failedToRemoveSourceFromNotebook: "從筆記本中移除來源失敗",
     removeConfirm: "確定要從此筆記本移除嗎？",
-    noSourcesYet: "暫無來源",
-    createFirstSource: "新增您的第一個來源開始構建知識庫。",
-    deleteSourceConfirm: "確定要刪除此來源嗎？",
     checking: "正在檢查...",
     untitledSource: "未命名來源",
     maxItems: "最多 {count} 個",
@@ -356,25 +333,50 @@ export const zhTW = {
     noInsightsYet: "暫無見解",
     createFirstInsight: "使用上方的轉換規則新增您的第一個見解",
     viewInsight: "查看見解",
+    deleteInsight: "刪除見解",
+    deleteInsightConfirm: "確定要刪除此見解嗎？此操作無法撤銷。",
+    insightGenerationStarted: "見解生成已開始，稍後將顯示。",
+    editNote: "編輯筆記",
+    createNote: "新增筆記",
+    addTitle: "新增標題...",
+    untitledNote: "無標題筆記",
+    writeNotePlaceholder: "在此處編寫您的筆記內容...",
+    saveNote: "儲存筆記",
+    createNoteBtn: "新增筆記",
+    createFirstNote: "新增您的第一條筆記，記錄見解與觀察。",
+    urlLabel: "URL(s) *",
+    fileLabel: "檔案(s) *",
+    textContentLabel: "文字內容 *",
+    enterUrlsPlaceholder: "每行輸入一個 URL\nhttps://example.com/article1\nhttps://example.com/article2",
+    batchUrlHint: "貼上多個 URL（每行一個）進行批次導入",
+    invalidUrlsDetected: "檢測到無效的 URL：",
+    lineLabel: "第 {line} 行",
+    fixInvalidUrls: "請修正或移除無效的 URL 以繼續",
+    selectMultipleFilesHint: "選擇多個檔案進行批次導入。支援：文件 (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD)，媒體 (MP4, MP3, WAV, M4A)，圖片 (JPG, PNG)，歸檔 (ZIP)",
+    selectedFiles: "已選擇檔案：",
+    textPlaceholder: "在此處貼上或輸入您的內容...",
+    htmlDetected: "偵測到 HTML 內容。處理後將轉換為 Markdown。",
+    titlePlaceholder: "為您的來源取一個描述性的標題",
+    batchTitlesAuto: "將為每個來源自動生成標題。",
+    batchCommonSettings: "相同的筆記本和轉換將應用於所有項目。",
+    urlsCount: "{count} 個 URL",
+    filesCount: "{count} 個檔案",
+    addSource: "新增來源",
+    notEmbeddedAlert: "內容未嵌入向量",
+    notEmbeddedDesc: "此內容尚未為了向量搜尋進行嵌入。嵌入可以啟用進階搜尋功能並更好地發現內容。",
+    openOnYoutube: "在 YouTube 上開啟",
+    urlCopied: "URL 已複製到剪貼簿",
     viewSource: "查看來源",
     noInsightSelected: "未選擇見解",
     sourceInsight: "來源見解",
     manageNotebooks: "管理所屬筆記本",
     manageNotebooksDesc: "管理包含此來源的筆記本",
     noNotebooksAvailable: "暫無可用筆記本",
-    deleteInsight: "刪除見解",
-    deleteInsightConfirm: "確定要刪除此見解嗎？此操作無法撤銷。",
-    insightGenerationStarted: "見解生成已開始，稍後將顯示。",
-    notEmbeddedAlert: "內容未嵌入向量",
-    notEmbeddedDesc: "此內容尚未為了向量搜尋進行嵌入。嵌入可以啟用進階搜尋功能並更好地發現內容。",
-    openOnYoutube: "在 YouTube 上開啟",
-    urlCopied: "URL 已複製到剪貼簿",
     loadFailed: "載入來源詳情失敗",
     removeFromNotebook: "從筆記本移除",
     retryProcessing: "重試處理",
     deleteSource: "刪除來源",
     retry: "重試",
-    progress: "進度",
     addExistingTitle: "新增現有來源",
     addExistingDesc: "從您的所有筆記本中選擇已有的來源新增到當前筆記本。",
     searchPlaceholder: "通過名稱或 URL 搜尋來源...",
@@ -382,35 +384,6 @@ export const zhTW = {
     showingFirst100: "僅顯示前 100 個來源。請使用搜尋功能查找特定來源。",
     selectedCount: "已選擇 {count} 個來源",
     added: "已新增於 {date}",
-    noNotesYet: '暫無筆記',
-    createFirstNote: "新增您的第一條筆記，記錄見解與觀察。",
-    deleteNote: '刪除筆記',
-    deleteNoteConfirm: '您確定要刪除此筆記嗎？此操作無法撤銷。',
-    editNote: '編輯筆記',
-    createNote: "新增筆記",
-    addTitle: '新增標題...',
-    untitledNote: '無標題筆記',
-    writeNotePlaceholder: '在此處編寫您的筆記內容...',
-    saveNote: '儲存筆記',
-    createNoteBtn: "新增筆記",
-    urlLabel: 'URL(s) *',
-    fileLabel: '檔案(s) *',
-    textContentLabel: '文字內容 *',
-    enterUrlsPlaceholder: '每行輸入一個 URL\nhttps://example.com/article1\nhttps://example.com/article2',
-    batchUrlHint: '貼上多個 URL（每行一個）進行批次導入',
-    invalidUrlsDetected: '檢測到無效的 URL：',
-    lineLabel: '第 {line} 行',
-    fixInvalidUrls: '請修正或移除無效的 URL 以繼續',
-    selectMultipleFilesHint: '選擇多個檔案進行批次導入。支援：文件 (PDF, DOC, DOCX, PPT, XLS, EPUB, TXT, MD)，媒體 (MP4, MP3, WAV, M4A)，圖片 (JPG, PNG)，歸檔 (ZIP)',
-    selectedFiles: '已選擇檔案：',
-    textPlaceholder: '在此處貼上或輸入您的內容...',
-    htmlDetected: '偵測到 HTML 內容。處理後將轉換為 Markdown。',
-    titlePlaceholder: '為您的來源取一個描述性的標題',
-    batchTitlesAuto: '將為每個來源自動生成標題。',
-    batchCommonSettings: '相同的筆記本和轉換將應用於所有項目。',
-    urlsCount: '{count} 個 URL',
-    filesCount: '{count} 個檔案',
-    addSource: "新增來源",
     addUrl: "新增 URL",
     uploadFile: "上傳檔案",
     enterText: "輸入文字",
@@ -435,8 +408,6 @@ export const zhTW = {
     batchFailed: "全部 {count} 個來源新增失敗",
     batchPartial: "{success} 個成功，{failed} 個失敗",
     submittingSource: "正在提交來源進行處理...",
-    contentRequired: "請提供所選來源類型所需的內容",
-    titleRequiredForText: "文字來源需要提供標題",
     processingBatchSources: "正在處理 {count} 個來源，請稍候...",
     processingSource: "正在處理您的來源，請稍候...",
     maxFilesAllowed: "每批最多允許 {count} 個檔案",
@@ -445,25 +416,19 @@ export const zhTW = {
     sessions: "對話",
     sessionTitlePlaceholder: "在此輸入標題...",
     noSessions: "暫無對話",
-    startChatting: "開始針對您的來源進行聊天。",
     deleteSession: "刪除對話",
     deleteSessionDesc: "確定要刪除此聊天會話嗎？此操作無法撤銷。",
     sendPlaceholder: "向您的來源提問...",
-    newChat: "新建對話",
     sessionsTitle: "對話列表",
-    clearhistory: "清空歷史",
-    renameSession: "重新命名對話",
-    noSourcesLinked: "未連結來源",
-    thinking: "AI 正在思考...",
     chatWith: "與 {name} 對話",
     startConversation: "開始針對 {type} 進行對話",
     askQuestions: "提出問題以更好地理解內容",
     pressToSend: "按 {key} 發送",
     model: "模型",
     createToStart: "新增一個會話以開始。",
-    chatWithNotebook: '與筆記本對話',
-    unableToLoadChat: '無法載入聊天',
-    noDescription: '暫無描述',
+    chatWithNotebook: "與筆記本對話",
+    unableToLoadChat: "無法載入聊天",
+    noDescription: "暫無描述",
     startByCreating: "從新增您的第一個筆記本開始，組織您的研究。",
     messagesCount: "{count} 條訊息",
     sessionCreated: "聊天會話已建立",
@@ -508,8 +473,10 @@ export const zhTW = {
     saveSuccess: "成功儲存到筆記本",
     saveError: "儲存到筆記本失敗",
     selectNotebook: "選擇筆記本",
-    createNewNotebook: "建立新筆記本",
-    cancel: "取消",
+    searchAndAsk: "搜尋與提問",
+    searchResultsFor: "搜尋 “{query}”",
+    askAbout: "提問關於 “{query}”",
+    orSearchKb: "或搜尋您的知識庫",
     saving: "儲存中...",
     advancedModelTitle: "進階模型選擇",
     advancedModelDesc: "為提問過程的每個階段選擇模型",
@@ -520,10 +487,6 @@ export const zhTW = {
     selectAnswerPlaceholder: "選擇回答模型",
     selectFinalPlaceholder: "選擇最終回答模型",
     saveChanges: "儲存更改",
-    searchAndAsk: "搜尋與提問",
-    searchResultsFor: "搜尋 “{query}”",
-    askAbout: "提問關於 “{query}”",
-    orSearchKb: "或搜尋您的知識庫",
     processingQuestion: "正在處理您的問題...",
   },
   podcasts: {
@@ -637,8 +600,41 @@ export const zhTW = {
     createProfile: "建立簡介",
     createSpeakerFirst: "在新增單集簡介之前，請先建立一個發言人簡介。",
     noEpisodeProfiles: "暫無單集簡介。建立一個以啟動播客生成。",
+    speakerCreated: "發言人設定已建立",
+    speakerCreatedDesc: "發言人設定已準備就緒。",
+    failedToCreateSpeaker: "建立發言人設定失敗",
+    speakerUpdated: "發言人設定已更新",
+    speakerUpdatedDesc: "更改已成功儲存。",
+    failedToUpdateSpeaker: "更新發言人設定失敗",
+    speakerDeleted: "發言人設定已刪除",
+    speakerDeletedDesc: "設定已成功移除。",
+    failedToDeleteSpeaker: "刪除發言人設定失敗",
+    speakerDuplicated: "發言人設定已複製",
+    speakerDuplicatedDesc: "已建立設定副本。",
+    failedToDuplicateSpeaker: "複製發言人設定失敗",
+    generationStarted: "播客啟動生成",
+    generationStartedDesc: "劇集 \"{name}\" 正在建立中。",
+    failedToStartGeneration: "啟動播客生成失敗",
+    tryAgainMoment: "請稍後再試。",
     deleteProfileTitle: "刪除簡介？",
     deleteProfileDesc: "這將移除 “{name}”。現有單集將保留其資料，但新單集將不再使用此設定。",
+    profileCreated: "劇集設定已建立",
+    profileCreatedDesc: "新的劇集設定已準備就緒。",
+    failedToCreateProfile: "建立劇集設定失敗",
+    profileUpdated: "劇集設定已更新",
+    profileUpdatedDesc: "更改已成功儲存。",
+    failedToUpdateProfile: "更新劇集設定失敗",
+    profileDeleted: "劇集設定已刪除",
+    profileDeletedDesc: "設定已成功移除。",
+    failedToDeleteProfile: "刪除劇集設定失敗",
+    failedToDeleteProfileDesc: "請確保設定未在使用中並重試。",
+    profileDuplicated: "劇集設定已複製",
+    profileDuplicatedDesc: "已建立設定副本。",
+    failedToDuplicateProfile: "複製劇集設定失敗",
+    episodeDeleted: "劇集已刪除",
+    episodeDeletedDesc: "播客劇集已成功移除。",
+    failedToDeleteEpisode: "刪除劇集失敗",
+    failedToDeleteSpeakerDesc: "請確保設定未在使用中並重試。",
     outlineModel: "大綱模型",
     transcriptModel: "腳本模型",
     segments: "分段數量",
@@ -701,42 +697,7 @@ export const zhTW = {
     speakerCountMin: "至少需要一個發言人",
     speakerCountMax: "最多只能設定 4 個發言人",
     delete: "刪除",
-    unknown: "未知",
-    deleteSuccess: "播客刪除成功",
     failedToDelete: "刪除播客失敗",
-    episodeDeleted: "劇集已刪除",
-    episodeDeletedDesc: "播客劇集已成功移除。",
-    failedToDeleteEpisode: "刪除劇集失敗",
-    profileCreated: "劇集設定已建立",
-    profileCreatedDesc: "新的劇集設定已準備就緒。",
-    failedToCreateProfile: "建立劇集設定失敗",
-    profileUpdated: "劇集設定已更新",
-    profileUpdatedDesc: "更改已成功儲存。",
-    failedToUpdateProfile: "更新劇集設定失敗",
-    profileDeleted: "劇集設定已刪除",
-    profileDeletedDesc: "設定已成功移除。",
-    failedToDeleteProfile: "刪除劇集設定失敗",
-    failedToDeleteProfileDesc: "請確保設定未在使用中並重試。",
-    profileDuplicated: "劇集設定已複製",
-    profileDuplicatedDesc: "已建立設定副本。",
-    failedToDuplicateProfile: "複製劇集設定失敗",
-    speakerCreated: "發言人設定已建立",
-    speakerCreatedDesc: "發言人設定已準備就緒。",
-    failedToCreateSpeaker: "建立發言人設定失敗",
-    speakerUpdated: "發言人設定已更新",
-    speakerUpdatedDesc: "更改已成功儲存。",
-    failedToUpdateSpeaker: "更新發言人設定失敗",
-    speakerDeleted: "發言人設定已刪除",
-    speakerDeletedDesc: "設定已成功移除。",
-    failedToDeleteSpeaker: "刪除發言人設定失敗",
-    failedToDeleteSpeakerDesc: "請確保設定未在使用中並重試。",
-    speakerDuplicated: "發言人設定已複製",
-    speakerDuplicatedDesc: "已建立設定副本。",
-    failedToDuplicateSpeaker: "複製發言人設定失敗",
-    generationStarted: "播客啟動生成",
-    generationStartedDesc: "劇集 \"{name}\" 正在建立中。",
-    failedToStartGeneration: "啟動播客生成失敗",
-    tryAgainMoment: "請稍後再試。",
   },
   settings: {
     contentProcessing: "內容處理",
@@ -772,13 +733,8 @@ export const zhTW = {
     title: "進階工具",
     desc: "針對進階使用者的調試和實用工具",
     systemInfo: "系統資訊",
-    systemInfoDesc: "查看底層系統組件的狀態",
     rebuildEmbeddings: "重建索引",
     rebuildEmbeddingsDesc: "為所有來源重建向量索引",
-    rebuildWarning: "此操作可能非常耗時，具體取決於您的來源數量。它將清除現有的向量索引並重新為所有內容生成嵌入。",
-    startRebuild: "開始重建",
-    rebuilding: "正在重建...",
-    rebuildSuccess: "索引重建已成功啟動",
     currentVersion: "目前版本",
     latestVersion: "最新版本",
     status: "狀態",
@@ -823,105 +779,53 @@ export const zhTW = {
     defaultPrompt: "預設全局提示詞",
     defaultPromptDesc: "該提示詞將被新增到您所有的轉換提示詞中",
     defaultPromptPlaceholder: "輸入您的預設轉換指令...",
-    saveDefault: "儲存預設設定",
     listTitle: "自訂轉換",
     createNew: "新建轉換",
-    testInPlayground: "在實驗室測試",
     inputLabel: "輸入文本",
-    inputPlaceholder: '請輸入要轉換的文本...',
-    outputLabel: '輸出',
-    runTest: '運行轉換',
-    running: '運行中...',
-    selectToStart: '選擇一個轉換規則開始',
-    name: '名稱',
-    namePlaceholder: '唯一標識符，例如 key_topics',
-    titlePlaceholder: '顯示名稱，預設為名稱',
-    promptPlaceholder: '編寫驅動此轉換的提示詞...',
-    descriptionPlaceholder: '描述此轉換的作用。',
-    suggestDefault: '新來源預設建議',
-    promptHint: '提示詞應根據源內容編寫。您可以要求模型總結、提取見解或生成表格等結構化輸出。',
-    createSuccess: '轉換規則建立成功',
-    updateSuccess: '轉換規則更新成功',
-    deleteSuccess: '轉換規則刪除成功',
+    inputPlaceholder: "請輸入要轉換的文本...",
+    outputLabel: "輸出",
+    runTest: "運行轉換",
+    running: "運行中...",
+    selectToStart: "選擇一個轉換規則開始",
+    name: "名稱",
+    namePlaceholder: "唯一標識符，例如 key_topics",
+    titlePlaceholder: "顯示名稱，預設為名稱",
+    promptPlaceholder: "編寫驅動此轉換的提示詞...",
+    descriptionPlaceholder: "描述此轉換的作用。",
+    suggestDefault: "新來源預設建議",
+    promptHint: "提示詞應根據源內容編寫。您可以要求模型總結、提取見解或生成表格等結構化輸出。",
+    createSuccess: "轉換規則建立成功",
+    updateSuccess: "轉換規則更新成功",
+    deleteSuccess: "轉換規則刪除成功",
     noTransformations: "暫無轉換規則",
     createOne: "建立一個轉換規則以開始",
-    deleteDesc: "刪除此轉換無法復原。",
     selectModel: "選擇模型",
     deleteConfirm: "確定要刪除此轉換規則嗎？",
     model: "模型",
     systemPrompt: "系統提示詞",
-    type: "類型",
-    extraction: "提取",
-    summary: "摘要",
-    custom: "自訂",
-    saveChanges: "儲存更改",
     overrideModelDesc: "為此對話會話覆蓋預設模型。留空則使用系統預設。",
     sessionUseReplacement: "此會話將使用 {name} 而不是預設模型。",
     systemDefault: "系統預設",
   },
   models: {
-    title: "模型管理",
-    desc: "設定用於 Open Notebook 不同用途的 AI 模型",
-    failedToLoad: "載入模型資料失敗",
-    language: "語言模型",
     embedding: "嵌入模型",
     tts: "文字轉語音",
     stt: "語音轉文字",
-    providers: "提供商",
-    defaultModels: "預設模型",
-    status: "狀態",
-    notConfigured: "未設定",
-    active: "活動",
-    inactive: "不活動",
-    configure: "設定",
-    saveChanges: "儲存更改",
-    addModel: "新增模型",
-    modelName: "模型名稱",
     provider: "提供商",
     apiKey: "API 密鑰",
-    baseUrl: "基礎 URL",
-    capabilities: "功能",
-    enabled: "已啟用",
-    disabled: "已禁用",
-    deleteConfirm: "確定要刪除此模型嗎？",
     deleteSuccess: "模型刪除成功",
     saveSuccess: "模型儲存成功",
-    providerStatus: "提供商狀態",
-    connectionOk: "連線正常",
-    connectionFailed: "連線失敗",
-    changeEmbeddingWarning: "更改預設嵌入模型將影響新的來源。現有來源可能需要重建索引。",
-    changeEmbeddingTitle: "更改預設嵌入模型？",
-    aiProviders: "AI 提供商",
-    providerConfigDesc: "通過環境變數設定提供商以啟用其模型。",
-    configuredCount: "已設定 {count} / {total}",
     noModels: "暫無模型",
-    learnMore: "了解如何設定提供商 →",
-    seeLess: "收起",
-    seeAll: "查看全部 {count} 個提供商",
-    language_models: "語言模型",
-    embedding_models: "嵌入模型",
-    text_to_speech: "文字轉語音",
-    speech_to_text: "語音轉文字",
-    languageDesc: "聊天、內容轉換和文本生成",
-    embeddingDesc: "語義搜尋和向量嵌入",
-    ttsDesc: "根據文本生成音訊",
-    sttDesc: "將語音轉錄為文本",
-    all: "全部",
-    noModelsConfigured: "未設定模型",
-    noProviderModelsConfigured: "未設定 {provider} 模型",
-    showMore: "顯示更多 ({count})",
     discoverModels: "探索模型",
     noModelsFound: "未從此提供商找到模型",
     modelType: "模型類型",
     modelTypeHint: "選擇要新增的模型類型。如果需要不同類型，請分批新增。",
     deleteModel: "刪除模型",
-    deleteModelDesc: "確定要刪除模型 “{name}” 嗎？該操作無法撤銷。",
     defaultAssignments: "預設模型分配",
     defaultAssignmentsDesc: "設定用於 Open Notebook 不同用途的預設模型",
     missingRequiredModels: "缺少必需的模型：{models}。如果没有這些模型，Open Notebook 可能無法正常運行。",
     selectModelPlaceholder: "選擇一個模型",
     requiredModelPlaceholder: "⚠️ 必需 - 請選擇一個模型",
-    whichModelToChoose: "我該選擇哪個模型？→",
     chatModelLabel: "聊天模型",
     chatModelDesc: "用於聊天對話",
     transformationModelLabel: "轉換模型",
@@ -936,16 +840,9 @@ export const zhTW = {
     ttsModelDesc: "用於生成播客",
     sttModelLabel: "語音轉文字模型",
     sttModelDesc: "用於音訊轉錄",
-    addSpecificModel: "新增 {type} 模型",
-    addSpecificModelDesc: "從可用提供商設定一個新的 {type} 模型。",
-    noProvidersForType: "暫無可用於 {type} 模型的提供商",
     selectProviderPlaceholder: "選擇提供商",
     providerRequired: "提供商是必填項",
-    modelNameRequired: "模型名稱是必填項",
     modelRequired: "模型是必填項",
-    adding: "正在新增...",
-    azureHint: "對於 Azure，請使用部署名稱作為模型名稱",
-    enterModelName: "輸入模型名稱",
     embeddingChangeTitle: "嵌入模型變更",
     embeddingChangeConfirm: "您即將將嵌入模型從 {from} 更改為 {to}。",
     rebuildRequired: "重要提示：需要重建索引",
@@ -959,7 +856,6 @@ export const zhTW = {
     changeModelOnly: "僅更改模型",
     changeAndRebuild: "更改並前往重建",
     autoAssign: "自動指派預設值",
-    autoAssignDesc: "為每個插槽自動指派最佳可用模型",
     autoAssigning: "正在指派...",
     autoAssignSuccess: "已自動指派 {count} 個預設模型",
     autoAssignNoModels: "沒有可指派的模型。請先同步模型。",
@@ -967,25 +863,16 @@ export const zhTW = {
     testModel: "測試模型",
     testModelSuccess: "模型測試通過",
     testModelFailed: "模型測試失敗",
-    testingModel: "正在測試模型...",
     searchOrAddModel: "搜尋或輸入模型名稱...",
-    addCustomModel: '新增 "{name}"',
+    addCustomModel: "新增 \"{name}\"",
   },
   apiKeys: {
     title: "使用您自己的 API 金鑰設定 AI",
     description: "將 API 金鑰安全地儲存在資料庫中，以在 Open Notebook 中啟用 AI 服務商。",
-    loadFailed: "載入 API 金鑰狀態失敗",
     encryptionRequired: "未設定加密金鑰",
     encryptionRequiredDescription: "請將 OPEN_NOTEBOOK_ENCRYPTION_KEY 環境變數設定為任意密鑰字串，以啟用將 API 金鑰儲存至資料庫。",
     configured: "已設定",
     notConfigured: "未設定",
-    sourceDatabase: "資料庫",
-    sourceEnvironment: "環境變數",
-    enterApiKey: "輸入您的 API 金鑰",
-    enterBaseUrl: "輸入基礎 URL",
-    saveSuccess: "API 金鑰儲存成功",
-    deleteSuccess: "API 金鑰刪除成功",
-    fromEnvironmentHint: "此金鑰通過環境變數設定。儲存新金鑰將在資料庫中覆蓋它。",
     migrationAvailable: "偵測到環境變數",
     migrationDescription: "{count} 個 API 金鑰通過環境變數設定，可以遷移到資料庫以便於管理。",
     migrateToDatabase: "遷移到資料庫",
@@ -993,67 +880,29 @@ export const zhTW = {
     migrationSuccess: "{count} 個 API 金鑰遷移成功",
     migrationErrors: "{count} 個金鑰遷移失敗",
     migrationNothingToMigrate: "所有金鑰已在資料庫中",
-    serviceType: "服務類型",
-    serviceLlm: "語言模型 (LLM)",
-    serviceEmbedding: "嵌入",
-    serviceStt: "語音轉文字 (STT)",
-    serviceTts: "文字轉語音 (TTS)",
-    serviceEndpoints: "服務端點（選填）",
-    azureEndpointsHint: "如有需要，為每種服務類型設定不同的端點。",
-    endpointPlaceholder: "https://your-resource.openai.azure.com/",
-    openaiCompatibleHint: "設定 OpenAI 相容的 API 端點。每種服務類型可以有自己的設定。",
-    baseUrlPlaceholder: "https://api.example.com/v1",
     learnMore: "瞭解如何設定 API 金鑰 →",
     testConnection: "測試連線",
-    testing: "測試中...",
     testSuccess: "連線成功",
     testFailed: "連線測試失敗",
     syncModels: "同步模型",
-    syncing: "同步中...",
     syncSuccess: "發現 {discovered} 個模型，新增 {new} 個",
     syncNoNew: "發現 {count} 個模型，全部已註冊",
     syncFailed: "同步模型失敗",
-    syncAllModels: "同步所有供應商",
-    syncAllSuccess: "在所有供應商中發現 {discovered} 個模型，新增 {new} 個",
-    modelsConfigured: "{count} 個模型",
-    noModelsConfigured: "無模型",
-    viewModels: "查看模型",
-    supportedTypes: "支援的類型",
-    typeLanguage: "語言",
-    typeEmbedding: "嵌入",
-    typeTts: "TTS",
-    typeStt: "STT",
-    apiEndpoint: "API 端點",
     getApiKey: "取得 API 金鑰",
     vertexProject: "GCP 專案 ID",
     vertexLocation: "區域",
     vertexCredentials: "服務帳戶 JSON 路徑",
-    vertexCredentialsHint: "容器內 Google Cloud 服務帳戶 JSON 檔案的路徑。",
-
-    // Multi-config translations
-    configsCount: "{count} 個設定",
-    configuredMultiple: "已設定",
     addConfig: "新增設定",
     editConfig: "編輯設定",
     deleteConfig: "刪除設定",
-    setAsDefault: "設為預設",
-    defaultBadge: "預設",
-    defaultDescription: "此供應商的預設設定",
     configName: "設定名稱",
     configNameHint: "此設定的描述性名稱（例如：'生產環境'、'開發環境'）",
     baseUrl: "基礎 URL",
-    baseUrlHint: "預設：{url}",
     baseUrlOverrideHint: "僅在需要覆蓋提供商預設 API 端點時更改此項。",
-    ollamaApiKeyHint: "僅 Ollama Cloud 需要 API 金鑰。本地 Ollama 請留空。",
-    noConfigs: "暫無設定",
-    noConfigsHint: "新增設定以開始使用此供應商",
     deleteConfigConfirm: "確定要刪除 '{name}' 嗎？此操作無法撤銷。",
-    setDefaultConfirm: "將 '{name}' 設為預設設定？",
     configSaveSuccess: "設定儲存成功",
     configUpdateSuccess: "設定更新成功",
     configDeleteSuccess: "設定刪除成功",
-    configSetDefaultSuccess: "預設設定已更新",
-    apiKeyHint: "輸入此設定的 API 金鑰",
     apiKeyEditHint: "留空以保留現有 API 金鑰",
   },
   setupBanner: {