fix(format): Improve concurrency control in cache and rollback modules, refine gitignore custom section handling, and enhance Prettier file processing

ts/mod_format/classes.baseformatter.ts

@@ -53,7 +53,19 @@ export abstract class BaseFormatter {
   }
 
   protected async modifyFile(filepath: string, content: string): Promise<void> {
-    await plugins.smartfile.memory.toFs(content, filepath);
+    // Validate filepath before writing
+    if (!filepath || filepath.trim() === '') {
+      throw new Error(`Invalid empty filepath in modifyFile`);
+    }
+
+    // Ensure we have a proper path with directory component
+    // If the path has no directory component (e.g., "package.json"), prepend "./"
+    let normalizedPath = filepath;
+    if (!plugins.path.parse(filepath).dir) {
+      normalizedPath = './' + filepath;
+    }
+
+    await plugins.smartfile.memory.toFs(content, normalizedPath);
   }
 
   protected async createFile(filepath: string, content: string): Promise<void> {