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Adds src/deployment_query.py (list_deployments/get_current_deployment/ get_deployment -- no project_id filter needed, deployment has no project_id column since there's exactly one graphlemon self-target) + three new backend_server.py routes (GET /api/deployments, /current, /:id, the last with recent deploy_health_signal history) + a new v_deployment_status page in frontend/app.js polling every 5s (deployment.status changes don't go through c_ws_subscribe -- Deploy Supervisor writes deployment/ deploy_health_signal directly, no execution_event of its own). No 02-V spec exists for this view (PH5 was added after 02-V was written) -- DOM/class conventions follow the existing pages' own patterns. Verified against a real running server via urllib (browser extension unavailable this session), plus 9 deployment_query unit tests and 5 real HTTP route tests. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
