feat: enhance codexlens frontend integration with reranker config, MCP tools card, and LSP management

Add three integration improvements to the CodexLens management panel:

- Enhance SettingsTab with RerankerConfigCard using /reranker/config endpoint
  for dynamic backend/model/provider dropdowns
- Add CcwToolsCard to AdvancedTab showing CCW registered tools with
  codex-lens tools highlighted
- Add LspServerCard to OverviewTab with start/stop/restart controls
  mirroring the FileWatcherCard pattern
- Create LSP lifecycle backend endpoints (start/stop/restart) bridging
  to Python StandaloneLspManager
- Add corresponding TanStack Query hooks, API functions, and i18n keys

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

@@ -16,6 +16,7 @@ import { cn } from '@/lib/utils';
 import type { CodexLensVenvStatus, CodexLensConfig } from '@/lib/api';
 import { IndexOperations } from './IndexOperations';
 import { FileWatcherCard } from './FileWatcherCard';
+import { LspServerCard } from './LspServerCard';
 
 interface OverviewTabProps {
   installed: boolean;
@@ -143,8 +144,11 @@ export function OverviewTab({ installed, status, config, isLoading, onRefresh }:
         </Card>
       </div>
 
-      {/* File Watcher */}
-      <FileWatcherCard disabled={!isReady} />
+      {/* Service Management */}
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+        <FileWatcherCard disabled={!isReady} />
+        <LspServerCard disabled={!isReady} />
+      </div>
 
       {/* Index Operations */}
       <IndexOperations disabled={!isReady} onRefresh={onRefresh} />