Release v4.2.11: Cross-platform Claude path detection

Critical Bugfix:
- Fixed SDK auto-detection failure by implementing explicit which/where commands
- Unix/macOS: Uses 'which claude' command
- Windows: Uses 'where claude' command (CMD and PowerShell compatible)
- Fallback to CLAUDE_CODE_PATH environment variable
- Handles Windows multiple results (takes first match)

Impact:
- Before: Worker failed with "path must be string, received undefined"
- After: Worker correctly finds Claude executable on all platforms

Technical changes:
- Added findClaudePath() helper using child_process.execSync
- Platform detection via process.platform === 'win32'
- Updated src/sdk/worker.ts with explicit path detection
- Updated src/services/worker-service.ts with explicit path detection
- Bumped version to 4.2.11 in all metadata files
- Updated CLAUDE.md with v4.2.11 release notes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mem",
-  "version": "4.2.10",
+  "version": "4.2.11",
   "description": "Memory compression system for Claude Code - persist context across sessions",
   "keywords": [
     "claude",