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feat: thinner border (4 px) and serial logging on border / recovery events

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- BORDER_THICKNESS_PX: 16 -> 4. Hardware-tested at 4 px on both yellow
  and red; yellow appears slightly thicker due to the irradiation
  illusion (perception, not a rendering issue) — not compensating per
  color absent an explicit request.
- Add Serial.println at every state transition that touches the
  err_border lifecycle: schema migration firing, sync-fail else
  branch (with HTTP code, distinguishing border vs full-fill fallback),
  304 recovery (with which flags triggered it), and recovery completion
  / abort. Lets us trace why a frame is or isn't showing a border via
  pio device monitor without needing to instrument anew each time.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Matt Edholm
2026-05-06 13:49:08 -04:00
parent 3fb7eb6ac3
commit 21871179bd
2 changed files with 13 additions and 1 deletions
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src/config.h
+1 -1
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@@ -38,7 +38,7 @@
#define NVS_SCHEMA_VERSION 1
// Width of the sync-fail / no-WiFi border, in pixels.
#define BORDER_THICKNESS_PX 16
#define BORDER_THICKNESS_PX 4
// ── Network ──────────────────────────────────────────────────────────────────
#define APP_BASE_URL "https://pictureframe.edholm.me"