Update Mill to 3.1.0 (3319)

metadata/com.calcitem.sanmill.yml

@@ -1888,6 +1888,36 @@ Builds:
       - $$flutter$$/bin/flutter build apk --flavor fdroid --release
     ndk: r21e
 
+  - versionName: 3.1.0
+    versionCode: 3319
+    commit: a89223b03dfae87d9129e81ea1a5565c2feff41a
+    subdir: src/ui/flutter_app
+    output: build/app/outputs/flutter-apk/app-fdroid-release.apk
+    srclibs:
+      - flutter@3.3.10
+    rm:
+      - src/perfect
+      - src/test
+      - src/ui/flutter_app/ios
+      - src/ui/flutter_app/linux
+      - src/ui/flutter_app/macos
+      - src/ui/flutter_app/windows
+      - src/ui/flutter_app/test
+      - src/ui/qt
+      - tests
+    prebuild:
+      - mv android/app/build.gradle_fdroid android/app/build.gradle
+      - export PUB_CACHE=$(pwd)/.pub-cache
+      - export PATH=$$flutter$$/bin:$PATH
+      - cd ../../..
+      - ./flutter-init.sh
+    scandelete:
+      - src/ui/flutter_app/.pub-cache
+    build:
+      - export PUB_CACHE=$(pwd)/.pub-cache
+      - $$flutter$$/bin/flutter build apk --flavor fdroid --release
+    ndk: r21e
+
 MaintainerNotes: |-
     Builds will fail when the srclib ref of flutter and the version with which
     upstream has been built with differ.
@@ -1896,5 +1926,5 @@ MaintainerNotes: |-
 AutoUpdateMode: Version
 UpdateCheckMode: Tags ^v.*$
 UpdateCheckData: src/ui/flutter_app/pubspec.yaml|version:\s.+\+(\d+)|.|version:\s(.+)\+
-CurrentVersion: 3.0.1
+CurrentVersion: 3.1.0
-CurrentVersionCode: 3306
+CurrentVersionCode: 3319