fix: create debug keystore on CI when secrets not configured

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -22,12 +22,21 @@ jobs:
         uses: gradle/actions/setup-gradle@v4
 
       - name: Decode keystore
-        if: ${{ env.KEYSTORE_BASE64 != '' }}
+        if: ${{ secrets.KEYSTORE_BASE64 != '' }}
         env:
           KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}
         run: |
           echo "$KEYSTORE_BASE64" | base64 -d > app/release.keystore
 
+      - name: Create debug keystore (fallback)
+        if: ${{ secrets.KEYSTORE_BASE64 == '' }}
+        run: |
+          mkdir -p ~/.android
+          keytool -genkey -v -keystore ~/.android/debug.keystore \
+            -storepass android -alias androiddebugkey -keypass android \
+            -keyalg RSA -keysize 2048 -validity 10000 \
+            -dname "CN=Android Debug,O=Android,C=US"
+
       - name: Build Release APK
         env:
           KEYSTORE_BASE64: ${{ secrets.KEYSTORE_BASE64 }}