test(build): add make watchdog, the glance memory budget and the glance screenshot

- make watchdog (in make ci): a stress build encodes, packs, turns into
  runs and draws the largest code of every 2D symbology at two steps per
  event on the Forerunner 255S and 70; it fails on a watchdog trip, and
  the last code left on the screen must decode (bitmap path on the 70).
- make memtest checks the glance (DIAG glance, budget 70 % of 64 KB).
- screenshots.sh launches the app again after the flow and compares the
  glance with the favourite's code (glance_code.png on 7 watches); the
  About goldens show 0.8.0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/tools/check_budgets.py b/tools/check_budgets.py
index 8b55a2b..8219a6d 100644
--- a/tools/check_budgets.py
+++ b/tools/check_budgets.py
@@ -7,6 +7,8 @@ Two kinds of lines are read from build/diag/<device>.log:
 
     DIAG first_frame startup_ms=1 mem_used=6984 mem_total=781888
         printed by the debug build (source/util/Diag.mc) after its first frame;
+    DIAG glance mem_used=12552 mem_total=65536
+        printed by the glance after its first draw (the simulator starts there);
     HARNESS first_frame wall_ms=2310
         added by app-diag.sh: wall-clock time from launching the app with
         monkeydo until that DIAG line appeared, which includes loading the
@@ -52,7 +54,11 @@ def measure(kind: str, events: dict[str, dict[str, float]]) -> dict[str, float]:
             values["first_frame_wall_ms"] = harness["wall_ms"]
         return values
     total = frame["mem_total"]
-    return {"mem_used_fraction": frame["mem_used"] / total if total else 1.0}
+    values = {"mem_used_fraction": frame["mem_used"] / total if total else 1.0}
+    glance = events.get("DIAG.glance")
+    if glance is not None:
+        values["glance_mem_used_fraction"] = glance["mem_used"] / glance["mem_total"] if glance["mem_total"] else 1.0
+    return values
 
 
 def main(argv: list[str] | None = None) -> int: