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/test/i18n.tsx

@@ -251,6 +251,30 @@ const mockMessages: Record<Locale, Record<string, string>> = {
     'codexlens.models.notInstalled.description': 'Please install CodexLens to use model management features.',
     'codexlens.models.empty.title': 'No models found',
     'codexlens.models.empty.description': 'Try adjusting your search or filter criteria',
+    // Reranker
+    'codexlens.reranker.title': 'Reranker Configuration',
+    'codexlens.reranker.description': 'Configure the reranker backend, model, and provider for search result ranking.',
+    'codexlens.reranker.backend': 'Backend',
+    'codexlens.reranker.backendHint': 'Inference backend for reranking',
+    'codexlens.reranker.model': 'Model',
+    'codexlens.reranker.modelHint': 'Reranker model name or LiteLLM endpoint',
+    'codexlens.reranker.provider': 'API Provider',
+    'codexlens.reranker.providerHint': 'API provider for reranker service',
+    'codexlens.reranker.apiKeyStatus': 'API Key',
+    'codexlens.reranker.apiKeySet': 'Configured',
+    'codexlens.reranker.apiKeyNotSet': 'Not configured',
+    'codexlens.reranker.configSource': 'Config Source',
+    'codexlens.reranker.save': 'Save Reranker Config',
+    'codexlens.reranker.saving': 'Saving...',
+    'codexlens.reranker.saveSuccess': 'Reranker configuration saved',
+    'codexlens.reranker.saveFailed': 'Failed to save reranker configuration',
+    'codexlens.reranker.noBackends': 'No backends available',
+    'codexlens.reranker.noModels': 'No models available',
+    'codexlens.reranker.noProviders': 'No providers available',
+    'codexlens.reranker.litellmModels': 'LiteLLM Models',
+    'codexlens.reranker.selectBackend': 'Select backend...',
+    'codexlens.reranker.selectModel': 'Select model...',
+    'codexlens.reranker.selectProvider': 'Select provider...',
     'navigation.codexlens': 'CodexLens',
   },
   zh: {
@@ -491,6 +515,30 @@ const mockMessages: Record<Locale, Record<string, string>> = {
     'codexlens.models.notInstalled.description': '请先安装 CodexLens 以使用模型管理功能。',
     'codexlens.models.empty.title': '没有找到模型',
     'codexlens.models.empty.description': '尝试调整搜索或筛选条件',
+    // Reranker
+    'codexlens.reranker.title': '重排序配置',
+    'codexlens.reranker.description': '配置重排序后端、模型和提供商，用于搜索结果排序。',
+    'codexlens.reranker.backend': '后端',
+    'codexlens.reranker.backendHint': '重排序推理后端',
+    'codexlens.reranker.model': '模型',
+    'codexlens.reranker.modelHint': '重排序模型名称或 LiteLLM 端点',
+    'codexlens.reranker.provider': 'API 提供商',
+    'codexlens.reranker.providerHint': '重排序服务的 API 提供商',
+    'codexlens.reranker.apiKeyStatus': 'API 密钥',
+    'codexlens.reranker.apiKeySet': '已配置',
+    'codexlens.reranker.apiKeyNotSet': '未配置',
+    'codexlens.reranker.configSource': '配置来源',
+    'codexlens.reranker.save': '保存重排序配置',
+    'codexlens.reranker.saving': '保存中...',
+    'codexlens.reranker.saveSuccess': '重排序配置已保存',
+    'codexlens.reranker.saveFailed': '保存重排序配置失败',
+    'codexlens.reranker.noBackends': '无可用后端',
+    'codexlens.reranker.noModels': '无可用模型',
+    'codexlens.reranker.noProviders': '无可用提供商',
+    'codexlens.reranker.litellmModels': 'LiteLLM 模型',
+    'codexlens.reranker.selectBackend': '选择后端...',
+    'codexlens.reranker.selectModel': '选择模型...',
+    'codexlens.reranker.selectProvider': '选择提供商...',
     'navigation.codexlens': 'CodexLens',
   },
 };