build(flatpak): add debug logging to inspect Gradle wrapper location

- Add `ls` and `find` commands to the Flatpak manifest to debug the directory structure and locate `gradle-wrapper.properties` during the build process.

Author: rainxchzed

packaging/flatpak/zed.rainxch.githubstore.yml

@@ -49,6 +49,8 @@ modules:
         JAVA_HOME: /usr/lib/sdk/openjdk21
         GRADLE_USER_HOME: /run/build/githubstore/.gradle
     build-commands:
+      # Debug: list what's in the build directory
+      - ls -la && echo "---" && ls -la gradle/wrapper/ || echo "gradle/wrapper/ NOT FOUND" && find . -name "gradle-wrapper.properties" -maxdepth 4 2>/dev/null || true
       # Use local Gradle distribution (no network needed)
       - sed -i 's|distributionUrl=.*|distributionUrl=gradle-bin.zip|' gradle/wrapper/gradle-wrapper.properties
       # Rewrite settings.gradle.kts files to use offline Maven repository