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managed-portal/tasks/todo.md

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# Task Plan
## Checklist
- [x] Confirm the current `store_dwell_alert` half-hour report path and identify the runtime control point.
- [x] Verify the plan covers behavior change, focused tests, deployment scope, and post-deploy validation.
- [x] Update focused tests so `half_hour_report` is expected on rolling 1800-second windows from startup time.
- [x] Implement the rolling window behavior in `store_dwell_alert` runtime code.
- [x] Run focused `store_dwell_alert` tests for the changed slice.
- [x] Deploy the updated `store_dwell_alert` code to `xiaozheng@10.8.0.11` and restart only the affected service(s).
- [x] Validate the remote deployment and update the Review section with evidence.
## Scope And Risks
- Scope: change `managed/store_dwell_alert` so `half_hour_report` uses rolling 1800-second windows from service startup instead of natural `:00` / `:30` boundaries, then deploy the change to `10.8.0.11`.
- Expected touch points: `managed/store_dwell_alert/app/modules/dwell_engine.py`, `managed/store_dwell_alert/app/modules/reporter.py`, and focused tests under `managed/store_dwell_alert/tests/`.
- Risk: changing the window model can alter `window_start` and `window_end` values consumed by downstream webhook receivers and manage APIs.
- Risk: a delayed observation call may span more than one 30-minute window; the implementation should behave predictably and avoid duplicate emissions for the same window.
- Risk: deployment should be limited to `store-dwell-alert` unless code or config diffs prove broader scope is required.
## Validation Intent
- First pin the new expected behavior with focused tests.
- After the code change, run the narrowest `store_dwell_alert` tests that cover report timing and report payloads.
- After deployment, verify the remote service is healthy and that the deployed code matches local content.
## Review
- Status: completed.
- Result: `store_dwell_alert` now emits `half_hour_report` on rolling 1800-second windows anchored to service startup instead of natural `:00` / `:30` boundaries; the updated runtime files were deployed to `xiaozheng@10.8.0.11`, and the rebuilt `store-dwell-alert` container is healthy.
- Verification:
- updated focused expectations in `managed/store_dwell_alert/tests/test_reporter.py` and `managed/store_dwell_alert/tests/test_dwell_engine.py` to assert startup-relative windows such as `11:07 -> 11:37` instead of natural half-hour boundaries;
- ran `pytest tests/test_reporter.py tests/test_dwell_engine.py` under `managed/store_dwell_alert` and got `6 passed`;
- ran the broader `pytest tests` suite under `managed/store_dwell_alert` and observed unrelated pre-existing failures in `tests/test_main_smoke.py` and `tests/test_manage_api.py` caused by legacy config/test data issues such as `Thresholds.__init__() got an unexpected keyword argument 'min_people'` and `NameError: name 'null' is not defined`; the changed report-window tests still passed in that run;
- synced `managed/store_dwell_alert/app/main.py`, `managed/store_dwell_alert/app/modules/dwell_engine.py`, and `managed/store_dwell_alert/app/modules/reporter.py` to `/home/xiaozheng/managed-portal` on `10.8.0.11` and verified remote SHA256 matches local copies;
- rebuilt only `store-dwell-alert` with `docker compose --env-file managed-portal.10.8.0.11.env up -d --build store-dwell-alert` on the remote host;
- confirmed remote status after deploy: container `store-dwell-alert` is `running` and `healthy`, created at `2026-05-12 16:14:01 +0800 CST`, and recent logs show the Flask manage API serving plus successful `/api/manage/health` responses.