skye.yue
46889c0621
Before JPEG encoding and OTA upload, paint the configured [[zones]] polygons (yellow) and the [trash].roi (red) directly onto a copied Frame.rgb so uploaded alarm snapshots visually carry the calibrated regions. Normalized coordinates are clamped to image bounds, the source frame stays untouched for downstream runtime processing, and non-alert/disabled paths are unchanged. Adds stdlib-only polygon fill/outline helpers plus focused unit tests. Co-Authored-By: Claude <noreply@anthropic.com>