Initial commit

server/brain/__init__.py

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+"""
+brain/ — 2nd Brain module.
+
+Provides persistent semantic memory: capture thoughts via Telegram (or any
+Aide tool), retrieve them by meaning via MCP-connected AI clients.
+
+Architecture:
+  - PostgreSQL + pgvector for storage and vector similarity search
+  - OpenRouter text-embedding-3-small for 1536-dim embeddings
+  - OpenRouter gpt-4o-mini for metadata extraction (type, tags, people, actions)
+  - MCP server mounted on FastAPI for external AI client access
+  - brain_tool registered with Aide's tool registry for Jarvis access
+"""