feat: Implement adaptive RRF weights and query intent detection

- Added integration tests for adaptive RRF weights in hybrid search.
- Enhanced query intent detection with new classifications: keyword, semantic, and mixed.
- Introduced symbol boosting in search results based on explicit symbol matches.
- Implemented embedding-based reranking with configurable options.
- Added global symbol index for efficient symbol lookups across projects.
- Improved file deletion handling on Windows to avoid permission errors.
- Updated chunk configuration to increase overlap for better context.
- Modified package.json test script to target specific test files.
- Created comprehensive writing style guidelines for documentation.
- Added TypeScript tests for query intent detection and adaptive weights.
- Established performance benchmarks for global symbol indexing.

package.json

@@ -11,7 +11,7 @@
   "scripts": {
     "build": "tsc -p ccw/tsconfig.json",
     "start": "node ccw/bin/ccw.js",
-    "test": "node --test",
+    "test": "node --test ccw/tests/*.test.js",
     "prepublishOnly": "npm run build && echo 'Ready to publish @dyw/claude-code-workflow'"
   },
   "keywords": [