Cloudflare runtime

Cloudflare is the hot runtime lane:

• Worker gateway for auth, routing, and hot reads.
• D1 for runtime and catalog state.
• Vectorize for semantic recall with metadata filtering.
• Queues for lifecycle fanout.
• R2 for redacted evidence and proof artifacts.
• Pages for hosted public docs.

FastAPI remains the heavy origin lane for cognition, compatibility, backfills, and proof tools.