feat: Implement CodexLens multi-provider embedding rotation management

- Added functions to get and update CodexLens embedding rotation configuration.
- Introduced functionality to retrieve enabled embedding providers for rotation.
- Created endpoints for managing rotation configuration via API.
- Enhanced dashboard UI to support multi-provider rotation configuration.
- Updated internationalization strings for new rotation features.
- Adjusted CLI commands and embedding manager to support increased concurrency limits.
- Modified hybrid search weights for improved ranking behavior.

ccw/src/core/routes/litellm-api-routes.ts

@@ -22,9 +22,14 @@ import {
   loadLiteLLMApiConfig,
   saveLiteLLMYamlConfig,
   generateLiteLLMYamlConfig,
+  getCodexLensEmbeddingRotation,
+  updateCodexLensEmbeddingRotation,
+  getEmbeddingProvidersForRotation,
+  generateRotationEndpoints,
   type ProviderCredential,
   type CustomEndpoint,
   type ProviderType,
+  type CodexLensEmbeddingRotation,
 } from '../../config/litellm-api-config-manager.js';
 import { getContextCacheStore } from '../../tools/context-cache-store.js';
 import { getLiteLLMClient } from '../../tools/litellm-client.js';
@@ -568,6 +573,66 @@ export async function handleLiteLLMApiRoutes(ctx: RouteContext): Promise<boolean
     return true;
   }
 
+  // ===========================
+  // CodexLens Embedding Rotation Routes
+  // ===========================
+
+  // GET /api/litellm-api/codexlens/rotation - Get rotation config
+  if (pathname === '/api/litellm-api/codexlens/rotation' && req.method === 'GET') {
+    try {
+      const rotationConfig = getCodexLensEmbeddingRotation(initialPath);
+      const availableProviders = getEmbeddingProvidersForRotation(initialPath);
+
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({
+        rotationConfig: rotationConfig || null,
+        availableProviders,
+      }));
+    } catch (err) {
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ error: (err as Error).message }));
+    }
+    return true;
+  }
+
+  // PUT /api/litellm-api/codexlens/rotation - Update rotation config
+  if (pathname === '/api/litellm-api/codexlens/rotation' && req.method === 'PUT') {
+    handlePostRequest(req, res, async (body: unknown) => {
+      const rotationConfig = body as CodexLensEmbeddingRotation | null;
+
+      try {
+        updateCodexLensEmbeddingRotation(initialPath, rotationConfig || undefined);
+
+        broadcastToClients({
+          type: 'CODEXLENS_ROTATION_UPDATED',
+          payload: { rotationConfig, timestamp: new Date().toISOString() }
+        });
+
+        return { success: true, rotationConfig };
+      } catch (err) {
+        return { error: (err as Error).message, status: 500 };
+      }
+    });
+    return true;
+  }
+
+  // GET /api/litellm-api/codexlens/rotation/endpoints - Get generated rotation endpoints
+  if (pathname === '/api/litellm-api/codexlens/rotation/endpoints' && req.method === 'GET') {
+    try {
+      const endpoints = generateRotationEndpoints(initialPath);
+
+      res.writeHead(200, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({
+        endpoints,
+        count: endpoints.length,
+      }));
+    } catch (err) {
+      res.writeHead(500, { 'Content-Type': 'application/json' });
+      res.end(JSON.stringify({ error: (err as Error).message }));
+    }
+    return true;
+  }
+
   // POST /api/litellm-api/ccw-litellm/install - Install ccw-litellm package
   if (pathname === '/api/litellm-api/ccw-litellm/install' && req.method === 'POST') {
     handlePostRequest(req, res, async () => {