Fix webworker loading and Jest test failures (#75)

* fix: correct webworker loading in Next.js

Update check.ts to use proper URL constructor for loading TypeScript webworker file. This resolves NS_ERROR_CORRUPTED_CONTENT error when browser attempts to load non-existent check_webworker.js.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* fix: resolve Jest test failure with webworker import.meta.url

- Add fallback to regular fetch when webworker is not available (e.g., in test environment)
- Create manual mock for check module to properly handle Jest imports
- Prevents 'Cannot use import.meta outside a module' error in tests
- Fix async promise executor lint error

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: daveschumaker

app/_api/horde/__mocks__/check.ts

@@ -0,0 +1,6 @@
+import { CheckSuccessResponse, CheckErrorResponse } from '../check';
+
+const checkImage = jest.fn<Promise<CheckSuccessResponse | CheckErrorResponse>, [string]>();
+
+export default checkImage;
+export type { CheckSuccessResponse, CheckErrorResponse };

app/_api/horde/check.ts

@@ -22,7 +22,12 @@ let worker: Worker | null = null;
 
 function getWorker() {
   if (!worker && typeof Worker !== 'undefined') {
-    worker = new Worker('./check_webworker.js');
+    // Check if we're in a test environment
+    if (typeof process !== 'undefined' && process.env.NODE_ENV === 'test') {
+      // Return null in test environment to avoid import.meta.url error
+      return null;
+    }
+    worker = new Worker(new URL('./check_webworker.ts', import.meta.url));
   }
   return worker;
 }
@@ -39,7 +44,29 @@ const performCheckUsingWorker = (
 
     const workerInstance = getWorker();
     if (!workerInstance) {
-      reject(new Error('Worker not available'));
+      // Fallback to regular fetch in test environment
+      fetch(url, { headers })
+        .then(response => {
+          return response.json().then(result => ({
+            ok: response.ok,
+            status: response.status,
+            result
+          }));
+        })
+        .then(({ ok, status, result }) => {
+          if (ok) {
+            resolve({ ...result, success: true });
+          } else {
+            resolve({
+              success: false,
+              statusCode: status,
+              message: result.message || 'Unknown error'
+            });
+          }
+        })
+        .catch(error => {
+          reject(error);
+        });
       return;
     }
 

buildId.json

@@ -1,3 +1,3 @@
 {
-  "buildId": "20250702_04.42.10"
+  "buildId": "20250704_14.21.57"
 }