Gengchou v2.2.0

Gengchou v2.2.0

AI Usage Monitor is now Gengchou. The new name reflects the app's job:
quietly keeping watch over recurring AI quota windows and their reset times.
The Windows UI uses the unlocalized Gengchou brand; Chinese documentation
also introduces the name as “更筹 Gengchou” (gēng chóu).

Rename and compatibility

• Rename the application, executable, release assets, and public package
  identity to Gengchou.
• Keep the existing %APPDATA%\AIUsageMonitor settings/cache directory,
  %LOCALAPPDATA%\AIUsageMonitor diagnostics/update directory, startup value,
  window classes, mutex, and tray GUIDs. Existing users keep their data and
  single-instance behavior without a migration step.
• Preserve the application icon from v2.1.0. A possible icon refinement is
  intentionally deferred rather than bundled into the rename.
• Add a tray registration fallback for users who move the renamed executable
  to a new path: if Windows rejects the existing GUID identity, the app retries
  with its stable per-process uID identity so the tray icons remain visible
  and interactive.

Updating from AI Usage Monitor

The transition release publishes both the new gengchou.exe /
gengchou-windows-x64.zip assets and compatibility copies under the former
ai-usage-monitor names. Older updaters continue to locate and verify the old
asset name; Gengchou selects the new asset name exactly. Both names are covered
by SHA256SUMS and GitHub artifact attestations.

Settings and usage data are not renamed or copied. After the update, Gengchou
opens the same configuration and cache that AI Usage Monitor used.

WinGet

The former yinjianxxx.AIUsageMonitor package was never published. Gengchou
will enter WinGet as a new package, yinjianxxx.Gengchou, after the GitHub
release and upgrade checks pass.