Major improvements to smart-search, chain-search cascade, ranking pipeline,
reranker factory, CLI history store, codex-lens integration, and uv-manager.
Simplify command-generator skill by inlining phases. Add comprehensive tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds robust exception handling for os.path.commonpath() in search_symbols()
to prevent crashes on malformed paths and Windows cross-drive scenarios.
Invalid symbols are skipped with debug logging, search continues.
Solution-ID: SOL-1735385400004
Issue-ID: ISS-1766921318981-4
Task-ID: T1