fix(backend,frontend): fix chat routing stability, citation quality, and OCR spacing#7
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sylvanding merged 1 commit intomainfrom Mar 12, 2026
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…and OCR spacing - Fix useChat transport closure: use ref-based transport so knowledge base selection is always up-to-date without recreating the Chat instance - Fix React Router remounting: add key="playground" to preserve state across / and /chat/:id routes, use replaceState instead of navigate during streams - Fix thinking chain duplicate steps: deduplicate by step name, emit "complete" event for auto-collapse with summary - Fix citation titles: prioritize Paper.title from DB over RAG chunk metadata - Fix citation excerpts: use full_context (adjacent chunks) instead of truncated text[:500], increase display limits to 400/800 - Fix OCR spacing: set pdfplumber x_tolerance=1 to prevent word concatenation - Fix CUDA config: propagate CUDA_VISIBLE_DEVICES from .env to os.environ Made-with: Cursor
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Summary
Test Plan