fix: improve chunking logic in Chunker class and enhance smart search tool with comprehensive features

- Updated the Chunker class to adjust the window movement logic, ensuring proper handling of overlap lines.
- Introduced a new smart search tool with features including intent classification, CodexLens integration, multi-backend search routing, and index status checking.
- Implemented various search modes (auto, hybrid, exact, ripgrep, priority) with detailed metadata and error handling.
- Added support for progress tracking during index initialization and enhanced output transformation based on user-defined modes.
- Included comprehensive documentation for usage and parameters in the smart search tool.

ccw/src/templates/dashboard-js/i18n.js

@@ -275,6 +275,7 @@ const i18n = {
     'codexlens.semanticInstalled': 'Semantic dependencies installed',
     'codexlens.semanticNotInstalled': 'Semantic dependencies not installed',
     'codexlens.installDeps': 'Install Dependencies',
+    'codexlens.installDepsPrompt': 'Would you like to install them now? (This may take a few minutes)\n\nClick "Cancel" to create FTS index only.',
     'codexlens.installingDeps': 'Installing dependencies...',
     'codexlens.depsInstalled': 'Dependencies installed successfully',
     'codexlens.depsInstallFailed': 'Failed to install dependencies',
@@ -324,8 +325,15 @@ const i18n = {
     'index.cleanAllSuccess': 'All indexes cleaned',
     'index.vectorIndex': 'Vector',
     'index.normalIndex': 'FTS',
+    'index.fullIndex': 'Full Index',
     'index.vectorDesc': 'Semantic search with embeddings',
     'index.normalDesc': 'Fast full-text search only',
+    'index.fullDesc': 'FTS + Semantic search (recommended)',
+    'index.selectModel': 'Select embedding model',
+    'index.modelCode': 'Code (768d)',
+    'index.modelFast': 'Fast (384d)',
+    'index.modelMultilingual': 'Multilingual (1024d)',
+    'index.modelBalanced': 'Balanced (1024d)',
 
     // Semantic Search Configuration
     'semantic.settings': 'Semantic Search Settings',
@@ -1596,6 +1604,7 @@ const i18n = {
     'codexlens.semanticInstalled': '语义搜索依赖已安装',
     'codexlens.semanticNotInstalled': '语义搜索依赖未安装',
     'codexlens.installDeps': '安装依赖',
+    'codexlens.installDepsPrompt': '是否立即安装？（可能需要几分钟）\n\n点击"取消"将只创建 FTS 索引。',
     'codexlens.installingDeps': '安装依赖中...',
     'codexlens.depsInstalled': '依赖安装成功',
     'codexlens.depsInstallFailed': '依赖安装失败',
@@ -1645,8 +1654,15 @@ const i18n = {
     'index.cleanAllSuccess': '所有索引已清理',
     'index.vectorIndex': '向量索引',
     'index.normalIndex': 'FTS索引',
+    'index.fullIndex': '全部索引',
     'index.vectorDesc': '语义搜索（含嵌入向量）',
     'index.normalDesc': '快速全文搜索',
+    'index.fullDesc': 'FTS + 语义搜索（推荐）',
+    'index.selectModel': '选择嵌入模型',
+    'index.modelCode': '代码优化 (768维)',
+    'index.modelFast': '快速轻量 (384维)',
+    'index.modelMultilingual': '多语言 (1024维)',
+    'index.modelBalanced': '高精度 (1024维)',
 
     // Semantic Search 配置
     'semantic.settings': '语义搜索设置',