feat: optimize JSON sync with 1 API call + raw URLs

- Replace GitHub API calls (390+) with 1 API call + raw URL downloads
- Create GitHubJsonService for efficient JSON file syncing
- Reduce API rate limiting issues by 99.7%
- Add automatic page reload after successful sync
- Update tests to use new service
- Maintain same functionality with better performance

Performance improvement:
- Before: 390+ GitHub API calls (1 per JSON file)
- After: 1 GitHub API call + 389 raw URL downloads
- Raw URLs have no rate limits, making sync much more reliable

scripts/json/monitor-all.json

@@ -13,7 +13,7 @@
   "website": null,
   "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/proxmox.webp",
   "config_path": "",
-  "description": "This script will add Monitor-All to Proxmox VE, which will monitor the status of all your instances, both containers and virtual machines, excluding templates and user-defined ones, and automatically restart or reset them if they become unresponsive. This is particularly useful if you're experiencing problems with Home Assistant becoming non-responsive every few days/weeks. Monitor-All also maintains a log of the entire process, which can be helpful for troubleshooting and monitoring purposes.\r\n\r\n\ud83d\udec8 Virtual machines without the QEMU guest agent installed must be excluded.\r\n\ud83d\udec8 Prior to generating any new CT/VM not found in this repository, it's necessary to halt Proxmox VE Monitor-All by running systemctl stop ping-instances.",
+  "description": "This script will add Monitor-All to Proxmox VE, which will monitor the status of all your instances, both containers and virtual machines, excluding templates and user-defined ones, and automatically restart or reset them if they become unresponsive. This is particularly useful if you're experiencing problems with Home Assistant becoming non-responsive every few days/weeks. Monitor-All also maintains a log of the entire process, which can be helpful for troubleshooting and monitoring purposes.\r\n\r\n🛈 Virtual machines without the QEMU guest agent installed must be excluded.\r\n🛈 Prior to generating any new CT/VM not found in this repository, it's necessary to halt Proxmox VE Monitor-All by running systemctl stop ping-instances.",
   "install_methods": [
     {
       "type": "default",
@@ -65,4 +65,4 @@
       "type": "info"
     }
   ]
-}
+}