康熙 bcab2469de feat: LLM-based query expansion for FTS mode ...

When searching in FTS-only mode (no embedding provider), extract meaningful
keywords from conversational queries using LLM to improve search results.

Changes:
- New query-expansion module with keyword extraction
- Supports English and Chinese stop word filtering
- Null safety guards for FTS-only mode (provider can be null)
- Lint compliance fixes for string iteration

This helps users find relevant memory entries even with vague queries.

2026-02-16 23:53:21 +01:00

2.8 KiB

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