fix: use absolute origin for API base to resolve 404s on HF

feat: v1.2.0 Monolith visual tag and final sync

fix: hardened backend isolation and debug logs in start.sh

fix: conditional backend-only mode and robust health check with retries

chore: trigger fresh build and sync all remotes

fix: Create missing models and fix python module discovery

feat: Add System tab with REW credits and fix DB seeding

feat: Full UI/UX overhaul with Seed Data and Agentic Sync

deploy: Add unified Docker deployment files for Hugging Face Spaces