- KB module: fastembed (AllMiniLML6V2) for CPU embedding, SQLite for
vector storage with brute-force cosine similarity search
- Chunking by ## headings, embeddings stored as BLOB in kb_chunks table
- API: GET/PUT /api/kb for full-text read/write with auto re-indexing
- Agent tools: kb_search (top-5 semantic search) and kb_read (full text)
available in both planning and execution phases
- Frontend: Settings menu in sidebar footer, KB editor as independent
view with markdown textarea and save button
- Also: extract shared db_err/ApiResult to api/mod.rs, add context
management design doc
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
