feat: remove API worker and batch size configurations; update CodexLens settings for v2

ccw/frontend/src/components/codexlens/OverviewTab.test.tsx

@@ -20,8 +20,6 @@ const mockStatus: CodexLensVenvStatus = {
 const mockConfig: CodexLensConfig = {
   index_dir: '~/.codexlens/indexes',
   index_count: 100,
-  api_max_workers: 4,
-  api_batch_size: 8,
 };
 
 // Mock window.alert
@@ -243,8 +241,6 @@ describe('OverviewTab', () => {
       const emptyConfig: CodexLensConfig = {
         index_dir: '',
         index_count: 0,
-        api_max_workers: 4,
-        api_batch_size: 8,
       };
 
       render(

ccw/frontend/src/components/codexlens/SettingsTab.test.tsx

@@ -54,8 +54,6 @@ import {
 const mockConfig: CodexLensConfig = {
   index_dir: '~/.codexlens/indexes',
   index_count: 100,
-  api_max_workers: 4,
-  api_batch_size: 8,
 };
 
 const mockEnv: Record<string, string> = {
@@ -75,8 +73,6 @@ function setupDefaultMocks() {
     config: mockConfig,
     indexDir: mockConfig.index_dir,
     indexCount: 100,
-    apiMaxWorkers: 4,
-    apiBatchSize: 8,
     isLoading: false,
     error: null,
     refetch: vi.fn(),
@@ -298,8 +294,6 @@ describe('SettingsTab', () => {
         config: mockConfig,
         indexDir: mockConfig.index_dir,
         indexCount: 100,
-        apiMaxWorkers: 4,
-        apiBatchSize: 8,
         isLoading: true,
         error: null,
         refetch: vi.fn(),

ccw/frontend/src/components/codexlens/SettingsTab.tsx

@@ -1,8 +1,8 @@
 // ========================================
 // CodexLens Settings Tab
 // ========================================
-// Structured form for CodexLens env configuration
-// Renders 5 groups: embedding, reranker, concurrency, cascade, chunking
+// Structured form for CodexLens v2 env configuration
+// Renders 4 groups: embedding, reranker, search, indexing
 // Plus a general config section (index_dir)
 
 import { useState, useEffect, useCallback, useMemo } from 'react';
@@ -33,12 +33,10 @@ export function SettingsTab({ enabled = true }: SettingsTabProps) {
   const { formatMessage } = useIntl();
   const { success, error: showError } = useNotifications();
 
-  // Fetch current config (index_dir, workers, batch_size)
+  // Fetch current config (index_dir, index_count)
   const {
     config,
     indexCount,
-    apiMaxWorkers,
-    apiBatchSize,
     isLoading: isLoadingConfig,
     refetch: refetchConfig,
   } = useCodexLensConfig({ enabled });
@@ -199,25 +197,13 @@ export function SettingsTab({ enabled = true }: SettingsTabProps) {
     <div className="space-y-6">
       {/* Current Info Card */}
       <Card className="p-4 bg-muted/30">
-        <div className="grid grid-cols-1 md:grid-cols-3 gap-4 text-sm">
+        <div className="text-sm">
           <div>
             <span className="text-muted-foreground">
               {formatMessage({ id: 'codexlens.settings.currentCount' })}
             </span>
             <p className="text-foreground font-medium">{indexCount}</p>
           </div>
-          <div>
-            <span className="text-muted-foreground">
-              {formatMessage({ id: 'codexlens.settings.currentWorkers' })}
-            </span>
-            <p className="text-foreground font-medium">{apiMaxWorkers}</p>
-          </div>
-          <div>
-            <span className="text-muted-foreground">
-              {formatMessage({ id: 'codexlens.settings.currentBatchSize' })}
-            </span>
-            <p className="text-foreground font-medium">{apiBatchSize}</p>
-          </div>
         </div>
       </Card>