nogueiraguh 2c3fb724bf feat: add RAG pipeline with OCI GenAI embeddings and ADB vector search ...

Integrate Retrieval-Augmented Generation into the chat flow using OCI
GenAI embed_text API and Oracle Autonomous Database vector storage.
The chat automatically queries ADB for relevant context when an active
ADB config with a linked GenAI config exists.

- Add EMBEDDING_MODELS catalog (Cohere Embed v3.0/light)
- Add _embed_text() using OCI GenAI SDK embed endpoint
- Add _vector_search() with VECTOR_DISTANCE cosine similarity
- Add _get_adb_connection(), _ensure_embeddings_table(), _build_rag_context()
- Add document ingestion endpoint (POST /api/adb/{vid}/ingest)
- Add table creation endpoint (POST /api/adb/{vid}/ensure-table)
- Modify chat endpoint with automatic RAG augmentation (non-fatal)
- Add GenAI config and embedding model selectors to ADB UI
- Add RAG status indicator in chat toolbar
- Add document ingestion section in ADB tab

2026-03-02 19:48:53 -03:00

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