feat: sidebar doc filter chips scope retrieval to selected documents

fix: ensure setLoading(false) runs in finally after streamChat

feat: stream tokens into chat UI via SSE

feat: Stage 8 — eval dashboard, mandatory web search, docs update

feat: multi-workspace frontend — workspace switcher, per-workspace doc list and chat

fix: null-safe briefing arrays, exhaustive useEffect deps, chip button type

feat: add briefing UI — summary card + clickable suggested questions after upload

feat: rebrand FinRAG → Prism (collection names, system prompt, UI branding)

feat: Migrate LLM to Groq, fix web search pipeline, add structured logging

Add Dockerfile and Render config