chore: clean up project configuration and remove unused dependencies

- Updated knip.json to exclude unused Remotion paths and dependencies.
- Cleaned up pnpm-lock.yaml by removing obsolete Remotion packages.
- Refactored TypeScript function signatures in main files for improved clarity.
- Enhanced various components for better code readability and maintainability.

knip.json

@@ -6,11 +6,9 @@
     "src/preload/index.ts",
     "src/renderer/main.tsx",
     "electron.vite.config.ts",
-    "vite.standalone.config.ts",
-    "remotion/index.ts",
-    "remotion/**/*.{ts,tsx}"
+    "vite.standalone.config.ts"
   ],
-  "project": ["src/**/*.{ts,tsx}!", "remotion/**/*.{ts,tsx}!"],
+  "project": ["src/**/*.{ts,tsx}!"],
   "ignore": ["tsconfig*.json"],
   "paths": {
     "@main/*": ["./src/main/*"],
@@ -18,6 +16,5 @@
     "@preload/*": ["./src/preload/*"],
     "@shared/*": ["./src/shared/*"]
   },
-  "ignoreDependencies": ["@remotion/light-leaks", "remotion"],
   "ignoreBinaries": ["pkg"]
 }

src/main/index.ts

@@ -116,7 +116,7 @@ function wireFileWatcherEvents(context: ServiceContext): void {
   }
 
   // Wire file-change events to renderer and HTTP SSE
-  const fileChangeHandler = (event: unknown) => {
+  const fileChangeHandler = (event: unknown): void => {
     if (mainWindow && !mainWindow.isDestroyed()) {
       mainWindow.webContents.send('file-change', event);
     }
@@ -126,7 +126,7 @@ function wireFileWatcherEvents(context: ServiceContext): void {
   fileChangeCleanup = () => context.fileWatcher.off('file-change', fileChangeHandler);
 
   // Forward checklist-change events to renderer and HTTP SSE (mirrors file-change pattern above)
-  const todoChangeHandler = (event: unknown) => {
+  const todoChangeHandler = (event: unknown): void => {
     if (mainWindow && !mainWindow.isDestroyed()) {
       mainWindow.webContents.send('todo-change', event);
     }

src/main/services/infrastructure/HttpServer.ts

@@ -73,6 +73,7 @@ export class HttpServer {
       await this.app.register(cors, { origin: origins, credentials: true });
     } else {
       // Default: allow all localhost origins
+      // eslint-disable-next-line security/detect-unsafe-regex -- anchored, no backtracking risk
       const localhostPattern = /^https?:\/\/(?:localhost|127\.0\.0\.1)(?::\d+)?$/;
       await this.app.register(cors, {
         origin: (origin, cb) => {

src/main/standalone.ts

@@ -20,11 +20,7 @@ import {
   getTodosBasePath,
   setClaudeBasePathOverride,
 } from './utils/pathDecoder';
-import {
-  LocalFileSystemProvider,
-  NotificationManager,
-  ServiceContext,
-} from './services';
+import { LocalFileSystemProvider, NotificationManager, ServiceContext } from './services';
 
 import type { HttpServices } from './http';
 import type { SshConnectionManager } from './services/infrastructure/SshConnectionManager';
@@ -59,7 +55,12 @@ const updaterServiceStub = {
 
 /** No-op SshConnectionManager stub — SSH is managed per-user in the Electron app. */
 const sshConnectionManagerStub = {
-  getStatus: () => ({ state: 'disconnected' as const, host: null, error: null, remoteProjectsPath: null }),
+  getStatus: () => ({
+    state: 'disconnected' as const,
+    host: null,
+    error: null,
+    remoteProjectsPath: null,
+  }),
   getProvider: () => new LocalFileSystemProvider(),
   isRemote: () => false,
   connect: async () => {},
@@ -148,7 +149,7 @@ async function start(): Promise<void> {
   };
 
   // No-op mode switch handler (no SSH in standalone)
-  const modeSwitchHandler = async () => {};
+  const modeSwitchHandler = async (): Promise<void> => {};
 
   // Start the server
   const port = await httpServer.start(services, modeSwitchHandler, PORT, HOST);

src/renderer/components/chat/SessionContextPanel/components/RankedInjectionList.tsx

@@ -272,7 +272,7 @@ export const RankedInjectionList = ({
             </button>
             {/* Copy path button for CLAUDE.md and File items */}
             {copyPath && (
-              <span className="shrink-0" onClick={(e) => e.stopPropagation()}>
+              <span className="shrink-0">
                 <CopyButton text={copyPath} inline />
               </span>
             )}

src/renderer/components/common/ConfirmDialog.tsx

@@ -37,6 +37,7 @@ let globalResolver: ConfirmResolver = null;
  * Usage:
  *   const confirmed = await confirm({ title: 'Delete?', message: 'This cannot be undone.' });
  */
+// eslint-disable-next-line react-refresh/only-export-components -- imperative API shares singleton state with component
 export async function confirm(opts: {
   title: string;
   message: string;

src/renderer/components/common/UpdateBanner.tsx

@@ -33,14 +33,20 @@ export const UpdateBanner = (): React.JSX.Element | null => {
     >
       {isDownloading ? (
         <div className="pr-8">
-          <div className="mb-1.5 flex items-center gap-2 text-xs" style={{ color: 'var(--color-text-secondary)' }}>
+          <div
+            className="mb-1.5 flex items-center gap-2 text-xs"
+            style={{ color: 'var(--color-text-secondary)' }}
+          >
             <Loader2 className="size-3.5 shrink-0 animate-spin text-blue-400" />
             <span>Updating app</span>
             <span className="tabular-nums" style={{ color: 'var(--color-text-muted)' }}>
               {clampedPercent}%
             </span>
           </div>
-          <div className="h-1 w-full overflow-hidden rounded-full" style={{ backgroundColor: 'var(--color-border)' }}>
+          <div
+            className="h-1 w-full overflow-hidden rounded-full"
+            style={{ backgroundColor: 'var(--color-border)' }}
+          >
             <div
               className="h-full rounded-full bg-blue-500 transition-all duration-300 ease-out"
               style={{ width: `${clampedPercent}%` }}
@@ -74,7 +80,7 @@ export const UpdateBanner = (): React.JSX.Element | null => {
       {/* Dismiss */}
       <button
         onClick={dismissUpdateBanner}
-        className="absolute right-3 top-1/2 -translate-y-1/2 shrink-0 rounded p-0.5 transition-colors hover:bg-white/10"
+        className="absolute right-3 top-1/2 shrink-0 -translate-y-1/2 rounded p-0.5 transition-colors hover:bg-white/10"
         style={{ color: 'var(--color-text-muted)' }}
       >
         <X className="size-3.5" />

src/renderer/components/layout/SidebarHeader.tsx

@@ -333,9 +333,7 @@ export const SidebarHeader = (): React.JSX.Element => {
         style={
           {
             height: `${HEADER_ROW1_HEIGHT}px`,
-            paddingLeft: isMacElectron
-              ? 'var(--macos-traffic-light-padding-left, 72px)'
-              : '16px',
+            paddingLeft: isMacElectron ? 'var(--macos-traffic-light-padding-left, 72px)' : '16px',
             WebkitAppRegion: isMacElectron ? 'drag' : undefined,
           } as React.CSSProperties
         }

src/renderer/components/sidebar/SessionItem.tsx

@@ -61,21 +61,14 @@ const ConsumptionBadge = ({
   contextConsumption: number;
   phaseBreakdown?: PhaseTokenBreakdown[];
 }>): React.JSX.Element => {
-  const [showPopover, setShowPopover] = useState(false);
+  const [popoverPosition, setPopoverPosition] = useState<{
+    top: number;
+    left: number;
+  } | null>(null);
   const badgeRef = useRef<HTMLSpanElement>(null);
   const isHigh = contextConsumption > 150_000;
 
-  // Calculate popover position relative to viewport for portal rendering
-  const popoverPosition =
-    showPopover && badgeRef.current
-      ? (() => {
-          const rect = badgeRef.current.getBoundingClientRect();
-          return {
-            top: rect.top - 6,
-            left: rect.left + rect.width / 2,
-          };
-        })()
-      : null;
+  const showPopover = popoverPosition !== null;
 
   return (
     // eslint-disable-next-line jsx-a11y/no-static-element-interactions -- tooltip trigger via hover, not interactive
@@ -83,8 +76,16 @@ const ConsumptionBadge = ({
       ref={badgeRef}
       className="tabular-nums"
       style={{ color: isHigh ? 'rgb(251, 191, 36)' : undefined }}
-      onMouseEnter={() => setShowPopover(true)}
-      onMouseLeave={() => setShowPopover(false)}
+      onMouseEnter={() => {
+        const rect = badgeRef.current?.getBoundingClientRect();
+        if (rect) {
+          setPopoverPosition({
+            top: rect.top - 6,
+            left: rect.left + rect.width / 2,
+          });
+        }
+      }}
+      onMouseLeave={() => setPopoverPosition(null)}
     >
       {formatTokensCompact(contextConsumption)}
       {showPopover &&

src/renderer/store/index.ts

@@ -221,7 +221,8 @@ export function initializeNotificationListeners(): () => void {
         (eventProjectBaseId == null || selectedProjectBaseId === eventProjectBaseId);
       const isTopLevelSessionEvent = !event.isSubagent;
       const isUnknownSessionInSidebar =
-        event.sessionId == null || !state.sessions.some((session) => session.id === event.sessionId);
+        event.sessionId == null ||
+        !state.sessions.some((session) => session.id === event.sessionId);
       const shouldRefreshForPotentialNewSession =
         isTopLevelSessionEvent &&
         matchesSelectedProject &&