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fix: reduce alarm snapshot label obstruction

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skye.yue
2026-06-15 14:21:31 +08:00
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@@ -315,4 +315,27 @@
- Remote health returned `status=ok` and `runtime_status=running`.
- Remote container config shows the new thresholds.
- After deployment, latest diagnostics stabilized at `zone_counts = {"1": 1, "2": 1, "6": 1}`.
- During a two-minute observation window after `13:25`, no new `batch_consumed` events were emitted; only expected pre-warning/alarm lifecycle events appeared for the occupied zones.
- During a two-minute observation window after `13:25`, no new `batch_consumed` events were emitted; only expected pre-warning/alarm lifecycle events appeared for the occupied zones.
## Current Task: Reduce Alarm Snapshot Label Visual Obstruction
**Goal:** Region labels on uploaded alarm screenshots should be smaller and more transparent so operators can inspect the food/display image underneath.
**Design:** Keep the existing label content, placement, CJK font rendering, and per-zone colors. Only reduce the visual weight of the label layer by lowering font size, black label-box opacity, border width, and fallback label-box opacity.
- [x] Inspect current alarm snapshot label rendering style.
- [x] Add a regression test for smaller ffmpeg drawtext label style.
- [x] Reduce drawtext font size and label-box opacity.
- [x] Keep fallback label renderer visually consistent with the ffmpeg path.
- [x] Run full local verification.
- [x] Deploy the updated snapshot overlay style to `xiaozheng@10.8.0.23`.
- [x] Verify remote runtime health and deployed label style.
### Notes
- Targeted snapshot test passed: `PYTHONPATH=src python3 -m unittest tests/test_alarm_snapshots.py -v`.
- Full local verification passed: `PYTHONPATH=src python3 -m unittest discover -s tests -v` (`103` tests).
- Remote verification passed:
- `GET /api/manage/health` returned `status=ok` and `runtime_status=running`.
- Running container uses `fontsize=13`, `boxcolor=black@0.34`, and `boxborderw=2` for region labels.
- `cold-display-guard-runtime` logs show normal startup after restart.