feat(CC-058): add GET /ai-requests/:id with full contextManifest for transparency viewer

src/ai-requests/ai-requests.controller.ts

@@ -1,5 +1,5 @@
-import { Controller, Get, Query } from '@nestjs/common';
+import { Controller, Get, NotFoundException, Param, ParseUUIDPipe, Query } from '@nestjs/common';
-import { desc, eq, sum, count } from 'drizzle-orm';
+import { and, desc, eq, sum, count } from 'drizzle-orm';
 import { CurrentSession } from '../auth/session.decorator';
 import type { AuthenticatedSession } from '../auth/tenant.guard';
 import { db } from '../db/client';
@@ -72,4 +72,18 @@ export class AiRequestsController {
       byStatus,
     };
   }
+
+  @Get(':id')
+  async getOne(
+    @CurrentSession() session: AuthenticatedSession,
+    @Param('id', ParseUUIDPipe) id: string,
+  ) {
+    const record = await db.query.aiRequests.findFirst({
+      where: and(eq(aiRequests.id, id), eq(aiRequests.tenantId, session.tenantId)),
+    });
+    if (!record) {
+      throw new NotFoundException('AI request not found');
+    }
+    return record;
+  }
 }