refactor: move sync version script to file

package.json

@@ -13,7 +13,7 @@
   },
   "main": "src/background.js",
   "scripts": {
-    "sync-version": "node -e \"const fs=require('fs'); const pkg=require('./package.json'); const m=require('./src/manifest.json'); if(m.version!==pkg.version){m.version=pkg.version; fs.writeFileSync('src/manifest.json', JSON.stringify(m,null,2)+'\\n'); console.log('✓ Updated manifest.json version to '+pkg.version)}else{console.log('✓ Version already in sync: '+pkg.version)}\"",
+    "sync-version": "node scripts/sync-version.mjs",
     "build": "npm run sync-version && tsc && cp src/manifest.json dist/ && cp src/popup.html dist/ && cp -r src/icons dist/",
     "package": "npm run build && web-ext build --source-dir=dist --artifacts-dir=. --filename=ipfs-quicklaunch-{version}.zip --overwrite-dest",
     "start": "npm run build && web-ext run --source-dir=dist --target=chromium",

scripts/sync-version.mjs

@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+
+// Synchronizes the version in src/manifest.json with the version in package.json
+import fs from 'fs';
+import { readFileSync } from 'fs';
+
+const pkg = JSON.parse(readFileSync('./package.json', 'utf8'));
+const manifestPath = './src/manifest.json';
+const manifest = JSON.parse(readFileSync(manifestPath, 'utf8'));
+
+if (manifest.version !== pkg.version) {
+  manifest.version = pkg.version;
+  fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 2) + '\n');
+  console.log('✓ Updated manifest.json version to ' + pkg.version);
+} else {
+  console.log('✓ manifest.json version already in sync with package.json: ' + pkg.version);
+}