MCP server exposing Oracle 23ai as a RAG vector store backed by
OCI GenAI Cohere Embed v4 (1536 dims). Three tools:
- insert_document: embed + store a text chunk
- update_document: re-embed + update an existing chunk
- search_similar: cosine similarity search (VECTOR_DISTANCE)
Uses python-oracledb thin mode with wallet (config_dir only).
Configured for Claude Code via ~/.claude/settings.json.
