feat(ci): auto-increment version + publish to GitHub Release

- Compute version from latest git tag (bump patch)
- Update tauri.conf.json and Cargo.toml with new version
- Create GitHub Release with signed APK + AAB via softprops/action-gh-release
- Release name: v{version}, APK filename: zeavis-edu-v{version}.apk

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

.github/workflows/android.yml

@@ -25,10 +25,15 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 45
     permissions:
-      contents: read
+      contents: write
+    outputs:
+      version: ${{ steps.version.outputs.version }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
 
       - name: Setup Bun
         uses: oven-sh/setup-bun@v2
@@ -72,6 +77,31 @@ jobs:
       - name: Install Tauri CLI
         run: cd apps/tauri && bun install
 
+      - name: Compute version
+        id: version
+        run: |
+          # Get latest git tag, default to v0.1.0
+          LATEST_TAG=$(git tag --list 'v*' --sort=-v:refname | head -1)
+          if [ -z "$LATEST_TAG" ]; then
+            NEW_VERSION="0.1.0"
+          else
+            # Strip 'v' prefix, bump patch
+            BASE="${LATEST_TAG#v}"
+            IFS='.' read -r MAJOR MINOR PATCH <<< "$BASE"
+            PATCH=$((PATCH + 1))
+            NEW_VERSION="${MAJOR}.${MINOR}.${PATCH}"
+          fi
+          echo "version=${NEW_VERSION}" >> $GITHUB_OUTPUT
+          echo "New version: ${NEW_VERSION}"
+
+          # Update tauri.conf.json
+          jq --arg v "${NEW_VERSION}" '.version = $v' apps/tauri/tauri.conf.json > /tmp/tauri.conf.json && mv /tmp/tauri.conf.json apps/tauri/tauri.conf.json
+
+          # Update Cargo.toml
+          sed -i "s/^version = \".*\"/version = \"${NEW_VERSION}\"/" apps/tauri/Cargo.toml
+
+          echo "Updated tauri.conf.json and Cargo.toml to ${NEW_VERSION}"
+
       - name: Init Tauri Android project
         working-directory: apps/tauri
         env:
@@ -103,7 +133,7 @@ jobs:
           ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
         run: |
           APK_UNSIGNED=$(find apps/tauri/gen/android/app/build/outputs/apk -name '*.apk' ! -name '*-signed*' | head -1)
-          APK_SIGNED="${APK_UNSIGNED%.apk}-signed.apk"
+          APK_SIGNED="apps/tauri/gen/android/app/build/outputs/apk/universal/release/zeavis-edu-v${{ steps.version.outputs.version }}.apk"
           $ANDROID_SDK_ROOT/build-tools/36.0.0/apksigner sign \
             --ks apps/tauri/zeavis.keystore \
             --ks-pass "pass:${ANDROID_KEYSTORE_PASSWORD}" \
@@ -111,14 +141,28 @@ jobs:
             --key-pass "pass:${ANDROID_KEY_PASSWORD}" \
             --out "$APK_SIGNED" \
             "$APK_UNSIGNED"
+          echo "signed_apk=${APK_SIGNED}" >> $GITHUB_ENV
           echo "Signed APK: $APK_SIGNED"
           ls -lh "$APK_SIGNED"
 
-      - name: Upload APK artifact
-        uses: actions/upload-artifact@v4
+      - name: Create Release and upload APK
+        if: github.event_name != 'pull_request'
+        uses: softprops/action-gh-release@v2
         with:
-          name: zeavis-edu-android
-          path: |
-            apps/tauri/gen/android/app/build/outputs/apk/**/*.apk
+          tag_name: v${{ steps.version.outputs.version }}
+          name: v${{ steps.version.outputs.version }}
+          body: |
+            ZeaVis Edu Android APK v${{ steps.version.outputs.version }}
+
+            📦 Built from ${{ github.sha }}
+            🔗 Triggered by ${{ github.actor }}
+
+            ### Install
+            Download the APK below and install on your Android device.
+
+            🤖 Generated with [Claude Code](https://claude.com/claude-code)
+          files: |
+            ${{ env.signed_apk }}
             apps/tauri/gen/android/app/build/outputs/bundle/**/*.aab
-          retention-days: 30
+          draft: false
+          prerelease: false