Sync deployment documentation to the final successful SAE state and clear pending deployment checklist items. Include backend/frontend/R hardening and diagnostics improvements required for stable production behavior.
Made-with: Cursor
Deliver SSE protocol hardening for SAE/HTTP2 paths, add graceful shutdown health behavior, and improve SSA retry UX for transient stream failures. For AIA, persist attachment extraction results in database with cache read-through fallback, plus production cache safety guard to prevent memory-cache drift in multi-instance deployments; also restore ASL SR page scrolling behavior.
Made-with: Cursor
