fix: preserve .example key order in merge-config, including nested objects

scripts/merge-config.cjs

@@ -11,15 +11,20 @@ if (!srcFile || !destFile) {
 }
 
 function deepMerge(target, source) {
-    for (const key of Object.keys(source)) {
-        if (!(key in target)) {
-            target[key] = source[key];
-        } else if (typeof source[key] === 'object' && !Array.isArray(source[key]) &&
-                   typeof target[key] === 'object' && !Array.isArray(target[key])) {
-            deepMerge(target[key], source[key]);
+    const result = { ...source };
+    for (const key of Object.keys(target)) {
+        if (key in source) {
+            if (typeof source[key] === 'object' && !Array.isArray(source[key]) &&
+                typeof target[key] === 'object' && !Array.isArray(target[key])) {
+                result[key] = deepMerge(target[key], source[key]);
+            } else {
+                result[key] = target[key];
+            }
+        } else {
+            result[key] = target[key];
         }
     }
-    return target;
+    return result;
 }
 
 const srcContent = fs.readFileSync(srcFile, 'utf8');
@@ -49,12 +54,22 @@ if (fs.existsSync(destFile)) {
     }
 }
 
-const merged = deepMerge(destData, srcData);
+const fullMerged = deepMerge(destData, srcData);
 
-const newKeys = Object.keys(merged).filter(k => !existingKeys.includes(k));
+const ordered = {};
+for (const key of Object.keys(srcData)) {
+    ordered[key] = fullMerged[key];
+}
+for (const key of Object.keys(destData)) {
+    if (!(key in srcData)) {
+        ordered[key] = destData[key];
+    }
+}
+
+const newKeys = Object.keys(ordered).filter(k => !existingKeys.includes(k));
 if (newKeys.length > 0) {
     console.log(`--> Added ${newKeys.length} new key(s) to ${path.basename(destFile)}`);
 }
 
-fs.writeFileSync(destFile, JSON.stringify(merged, null, 4) + '\n');
+fs.writeFileSync(destFile, JSON.stringify(ordered, null, 4) + '\n');
 console.log(`--> [OK] ${path.basename(destFile)} is up to date`);