fix: mcp_health capabilities KeyError; verify DATABASE_URL in init_db_pool

fix: move _servers_with_live_health before @router .get decorator; fix db try block indent

fix: correct indentation in db_pool try block

fix: log real PostgreSQL startup error instead of silently falling back

fix: agent/run direct provider chain; enable Supabase PostgreSQL via DATABASE_URL

fix: agent/run uses direct Groq→Cerebras→OpenRouter fallback chain (no Databricks)

fix: agent/run calls gateway.complete() not gateway.generate()

fix: add all missing local module stubs (remote_mcp_registry, mcp_auth, mcp_transport, etc)

fix: add missing remote_mcp_proxy module required by mcp_routes.py

fix: zipalign -h exits 2 — use zipalign -v with || true instead

fix: restore HF Space README config header

production: clean source snapshot — no history bloat