Deploy 9825b518 from GitHub Actions

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fix: use correct Cerebras model gpt-oss-120b for fallback

fix: add Groq retry with Cerebras fallback for chat generation

fix: save uploaded files to persistent uploads dir instead of /tmp

fix: use get_current_user to auto-create user record before document insert

fix: simplify direct upload endpoint

feat: add direct file upload endpoint bypassing UploadThing CDN

fix: pin httpx to 0.27.2 for openai compatibility

Deploy MiningNiti API with production RAG pipeline

initial commit