Bump AutoTranslate-warmup and FilterAllTabs log-level from Debug to
Information so the xllog tail surfaces them without a Debug filter.
Wrap MessageStore.Connect and MessageStore.Migrate in Stopwatches so
the SQLite open and migration-chain costs are visible too.
Sub-Task 3.4 Befund on v1.4.8-baseline (4 reloads, medians):
- MessageStore.Connect: 50.5 ms
- MessageStore.Migrate: 2 ms
- MessageManager.FilterAllTabs: 68.5 ms
- AutoTranslate warmup: 108 ms
- UiBuilder HITCH: 108.9 ms
Outcome D — none of the three dominates the 200 ms threshold. The
ChatTwo "300 ms" comment for AutoTranslate is falsified at ~108 ms;
SQLite is not the bottleneck (52.5 ms total); FilterAllTabs runs on
the worker thread and only competes for CPU slots. The HITCH is left
unexplained by these probes, which keeps Hypothesis c (multi-window
WindowSystem.Draw initial pass) as the main R2 suspect to be
validated by the R1 lazy-window refactor.
Logs stay in as belt-and-suspenders for future plugin-load
regressions.
JonKazama-Hellion
6051e49307