fix: build Rust native libs in CI (jniLibs is gitignored)

.github/workflows/release.yml

@@ -26,6 +26,13 @@ jobs:
           echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 -d > android/app/kirakira-release.jks
           echo "KEYSTORE_PATH=$GITHUB_WORKSPACE/android/app/kirakira-release.jks" >> $GITHUB_ENV
 
+      # jniLibs/ is gitignored, so a fresh clone has no Rust .so files. Without
+      # this the APK builds fine and then crashes on the first FFI call.
+      - name: Build Rust native libraries
+        run: |
+          env -u GITHUB_TOKEN -u GH_TOKEN -u JAVA_HOME \
+            devbox run build-native-android
+
       - name: Build release APK
         env:
           STORE_PASSWORD: ${{ secrets.STORE_PASSWORD }}