feat: implement multi-architecture release strategy

- Updated build-release.sh to create universal tarball with all architectures
- Use pulse-wrapper.sh as main executable that auto-detects architecture
- Wrapper automatically cleans up unused architecture binaries
- Single tarball works for amd64, arm64, and armv7
- Compatible with Proxmox helper script expectations

VERSION

@@ -1 +1 @@
-4.0.0-rc.1-test
+4.0.0-test

build-release.sh

@@ -52,8 +52,10 @@ for build_name in "${!builds[@]}"; do
     
     # Copy files
     cp "$BUILD_DIR/pulse-$build_name" "$staging_dir/pulse"
+    mkdir -p "$staging_dir/frontend-modern"
     cp -r frontend-modern/dist "$staging_dir/frontend-modern/"
-    cp README.md LICENSE pulse.service install.sh "$staging_dir/"
+    cp README.md LICENSE install.sh "$staging_dir/"
+    # Note: pulse.service might not exist in Go version
     
     # Create tarball
     cd "$staging_dir"
@@ -86,8 +88,10 @@ for build_name in "${!builds[@]}"; do
 done
 
 # Copy common files
+mkdir -p "$universal_staging/frontend-modern"
 cp -r frontend-modern/dist "$universal_staging/frontend-modern/"
-cp README.md LICENSE pulse.service install.sh pulse-wrapper.sh "$universal_staging/"
+cp README.md LICENSE install.sh pulse-wrapper.sh "$universal_staging/"
+echo "$VERSION" > "$universal_staging/VERSION"
 
 # Rename wrapper to 'pulse' for seamless usage
 cp pulse-wrapper.sh "$universal_staging/pulse"

pulse-wrapper.sh

@@ -30,6 +30,9 @@ if [ ! -f "$SCRIPT_DIR/$BINARY" ]; then
     exit 1
 fi
 
+# Make the correct binary executable (in case permissions were lost)
+chmod +x "$SCRIPT_DIR/$BINARY" 2>/dev/null || true
+
 # On first run, clean up other architecture binaries to save space
 if [ -f "$SCRIPT_DIR/.first-run-cleanup" ]; then
     echo "Cleaning up unused architecture binaries..."