[wizdom13]

• Fix Java heap space in :app:mergeReleaseNativeDebugMetadata from https://github.com/wizdom13/WizeFiles-Pro/actions/runs/36770809071/job/110076408373. The universal APK built successfully; the second (ARM64) build failed in the reused Gradle JVM before signing began.
• Run each of the three APK builds in a fresh single-use Gradle process with a 6 GiB heap and at most two workers. Reuse compiled outputs on disk between architectures.
• Keep the app code, native-symbol generation, APK validation and signing steps unchanged; both production releases and PR packaging use this shared script.
• Validation: shell syntax and whitespace checks pass. The packaging regression tests passed in CI, but both PR workflows were cancelled before completion. The packaging run was cancelled during the native build, before APK assembly/signing/upload; full validation remains pending a fresh release or packaging run. The fix is merged on main at 51c587946a7f82818edad8d42d8d81ad5d2b16f0.