app: plugin-management: Fix to only chmod a file if it is needed

This removes changing a file if it's not needed.

Note: electron will also chmod a file if it's different from the
default for user-plugins folders. I guess it must copy the files.

Author: illume

app/electron/plugin-management.ts

@@ -1076,10 +1076,15 @@ export function getPluginBinDirectories(pluginsDir: string): string[] {
             for (const file of files) {
               const filePath = path.join(binDir, file);
               // Skip directories
-              if (fs.statSync(filePath).isDirectory()) {
+              const stat = fs.statSync(filePath);
+              if (stat.isDirectory()) {
                 continue;
               }
-              fs.chmodSync(filePath, 0o755); // rwx r-x r-x
+              const currentMode = stat.mode & 0o777;
+              if (currentMode !== 0o755) {
+                console.log(`Setting executable permissions for ${filePath}`);
+                fs.chmodSync(filePath, 0o755); // rwx r-x r-x
+              }
             }
           } catch (err) {
             console.error(`Error setting executable permissions in ${binDir}:`, err);