checkpoint: archive current 7.5.1 before performance optimization

Ariver

2026-05-20 f8e102d2756a56efb6b9d92e578aedc3b7d63084

 Apptag/Info.plist

@@ -21,7 +21,7 @@
   <key>CFBundleShortVersionString</key>
   <string>7.5.1</string>
   <key>CFBundleVersion</key>
   <string>751</string>
   <string>20260520.1228</string>
   <key>LSMinimumSystemVersion</key>
   <string>15.0</string>
   <key>NSHighResolutionCapable</key>