Philipp Mock 9abda1d867 Add LLM provider switch, markdown chat UI, and update README
- Dual RAG instances (Ollama + OpenAI) for on-the-fly provider switching
- Provider dropdown in chat UI, /api/providers endpoint
- Markdown rendering for assistant responses
- Server logs include provider and model name for each LLM response
- README: OpenAI setup, add_pdfs, API docs, provider switch

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-02-11 16:09:42 +01:00
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