fix: add common webhook config check for SOFARR_BASE_URL and SOFARR_WEBHOOK_SECRET

- Ombi webhook status now checks for required environment variables
- Added GET /api/webhook/config endpoint for common webhook config validation
- Updated client-side fetchWebhookStatus to use common config check
- Added integration tests for new endpoint and Ombi webhook status checks

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sofarr",
-  "version": "1.7.1",
+  "version": "1.7.2",
   "description": "A personal media download dashboard that shows your downloads 'so far' while you relax on the sofa waiting for your *arr services to finish",
   "main": "server/index.js",
   "scripts": {