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• Switch to async httpx for RAG searches to prevent event loop blocking

  The multi-query vector search with blocking urllib.request.urlopen calls
  was stalling the single-threaded uvicorn event loop. Now uses async
  httpx.AsyncClient with asyncio.gather for parallel requests.
  
  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 11:51:48 +00:00
  ce8d4a79a0
• Improve VectorDB search: multi-query, topic boosting, wider recall

  - Generate multiple query variants (entities, topic words, combined)
  - Search with top_k=30 per sub-query for wider recall
  - Boost results matching multiple topic words for relevance
  - Deduplicate and merge across all sub-queries
  - Return top 15 results (up from 10) for richer RAG context
  
  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 11:42:44 +00:00
  6271f3726e
• Update CHANGELOG with VectorDB field fix and error handling improvements

  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 11:16:11 +00:00
  11211c174f
• Improve error messages for missing API keys and HTTP errors

  Show clear guidance when provider has no key configured instead of
  cryptic 401. Add friendly messages for 429/403 errors during streaming.
  
  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 11:15:38 +00:00
  4b4235ad7f
• Fix VectorDB search: use content field instead of text

  The vector-db API returns message content in a top-level "content" field
  with "author" and "channel" also top-level (not nested under metadata).
  Previous code read "text" and "metadata.author" which returned empty strings,
  making all vector search results invisible to the LLM.
  
  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 10:41:10 +00:00
  a722e16fe2
• Initial release: Multi-provider AI chat with RAG

  FastAPI backend (wiki-vector-chat.py) with Odysseus-style frontend.
  Features: multi-provider LLM, Wiki KB + VectorDB RAG, session history,
  chat modes, save-to-wiki, markdown rendering, SSE streaming.
  
  Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

  admin · 2026-06-03 10:25:29 +00:00
  ae621ecbb5