Add deleteJsonFile utility function in fileUtils.ts

- Introduced a new function `deleteJsonFile` to handle the deletion of JSON files. This function gracefully manages errors by ignoring 'file not found' errors (ENOENT) while throwing a custom error for other issues.
- This enhancement improves file management capabilities within the application, allowing for better handling of temporary or unnecessary JSON files.

These changes contribute to a more robust utility for file operations.

Author: anatolyshipitz

workers/main/src/common/fileUtils.ts

@@ -30,3 +30,14 @@ export async function writeJsonFile<T = object>(
     throw new FileUtilsError(`Failed to write JSON file at "${filePath}"`);
   }
 }
+
+export async function deleteJsonFile(filePath: string): Promise<void> {
+  try {
+    await fs.unlink(filePath);
+  } catch (error) {
+    // Ignore ENOENT (file not found) errors as they're expected when clearing
+    if ((error as NodeJS.ErrnoException).code !== 'ENOENT') {
+      throw new FileUtilsError(`Failed to delete JSON file at "${filePath}"`);
+    }
+  }
+}