feat: implement fuzzy search and replace functionality with Levenshtein distance

- Added `applySearchReplace` function to handle search and replace operations with fuzzy matching capabilities.
- Introduced tests for various scenarios including fuzzy matching with typos, exact matches, and handling whitespace differences.
- Created a parser for search/replace blocks to facilitate the new functionality.
- Updated prompts for search-replace operations to clarify usage and examples.
- Added utility functions for text normalization and language detection based on file extensions.
- Implemented a minimal stdio MCP server for local testing with tools for adding numbers and printing environment variables.

e2e-tests/snapshots/thinking_budget.spec.ts_thinking-budget-4.txt

@@ -49,7 +49,7 @@
         },
         {
           "path": "components.json",
-          "content": "// File contents excluded from context",
+          "content": "{\n  \"$schema\": \"https://ui.shadcn.com/schema.json\",\n  \"style\": \"default\",\n  \"rsc\": false,\n  \"tsx\": true,\n  \"tailwind\": {\n    \"config\": \"tailwind.config.ts\",\n    \"css\": \"src/index.css\",\n    \"baseColor\": \"slate\",\n    \"cssVariables\": true,\n    \"prefix\": \"\"\n  },\n  \"aliases\": {\n    \"components\": \"@/components\",\n    \"utils\": \"@/lib/utils\",\n    \"ui\": \"@/components/ui\",\n    \"lib\": \"@/lib\",\n    \"hooks\": \"@/hooks\"\n  }\n}\n",
           "force": false
         },
         {
@@ -404,17 +404,17 @@
         },
         {
           "path": "tsconfig.app.json",
-          "content": "// File contents excluded from context",
+          "content": "{\n  \"compilerOptions\": {\n    \"target\": \"ES2020\",\n    \"useDefineForClassFields\": true,\n    \"lib\": [\"ES2020\", \"DOM\", \"DOM.Iterable\"],\n    \"module\": \"ESNext\",\n    \"skipLibCheck\": true,\n\n    /* Bundler mode */\n    \"moduleResolution\": \"bundler\",\n    \"allowImportingTsExtensions\": true,\n    \"isolatedModules\": true,\n    \"moduleDetection\": \"force\",\n    \"noEmit\": true,\n    \"jsx\": \"react-jsx\",\n\n    /* Linting */\n    \"strict\": false,\n    \"noUnusedLocals\": false,\n    \"noUnusedParameters\": false,\n    \"noImplicitAny\": false,\n    \"noFallthroughCasesInSwitch\": false,\n\n    \"baseUrl\": \".\",\n    \"paths\": {\n      \"@/*\": [\"./src/*\"]\n    }\n  },\n  \"include\": [\"src\"]\n}\n",
           "force": false
         },
         {
           "path": "tsconfig.json",
-          "content": "// File contents excluded from context",
+          "content": "{\n  \"files\": [],\n  \"references\": [\n    { \"path\": \"./tsconfig.app.json\" },\n    { \"path\": \"./tsconfig.node.json\" }\n  ],\n  \"compilerOptions\": {\n    \"baseUrl\": \".\",\n    \"paths\": {\n      \"@/*\": [\"./src/*\"]\n    },\n    \"noImplicitAny\": false,\n    \"noUnusedParameters\": false,\n    \"skipLibCheck\": true,\n    \"allowJs\": true,\n    \"noUnusedLocals\": false,\n    \"strictNullChecks\": false\n  }\n}\n",
           "force": false
         },
         {
           "path": "tsconfig.node.json",
-          "content": "// File contents excluded from context",
+          "content": "{\n  \"compilerOptions\": {\n    \"target\": \"ES2022\",\n    \"lib\": [\"ES2023\"],\n    \"module\": \"ESNext\",\n    \"skipLibCheck\": true,\n\n    /* Bundler mode */\n    \"moduleResolution\": \"bundler\",\n    \"allowImportingTsExtensions\": true,\n    \"isolatedModules\": true,\n    \"moduleDetection\": \"force\",\n    \"noEmit\": true,\n\n    /* Linting */\n    \"strict\": true,\n    \"noUnusedLocals\": false,\n    \"noUnusedParameters\": false,\n    \"noFallthroughCasesInSwitch\": true\n  },\n  \"include\": [\"vite.config.ts\"]\n}\n",
           "force": false
         },
         {
@@ -429,7 +429,9 @@
         }
       ],
       "enable_lazy_edits": true,
-      "enable_smart_files_context": true
+      "enable_smart_files_context": true,
+      "smart_context_mode": "balanced",
+      "app_id": 1
     }
   },
   "headers": {