fix(deploy): restore lockfile caching with native linux transitive overrides to bypass boot loop

fix(deploy): forcefully isolate package-lock.json from Linux builder to avoid cross-OS binary lock loops

fix(critical): added .dockerignore to strip node_modules and 1.2GB Puppeteer Chromium from Docker build to prevent multi-hour HF APP_STARTING boot loops

fix: explicit reboot trigger to clear HF App Starting lockup

feat: handle user attribution and fixed PDF-to-proposal flow

fix: add HF Space metadata (sdk: docker) for deployment

Phase 9: QUANTA — RFQ-to-Revenue Proposal Orchestrator