Add Zerobyte installer, CT script, and docs

Introduce Zerobyte support: add LXC container installer (install/zerobyte-install.sh), container template/update script (ct/zerobyte.sh), and frontend metadata (frontend/public/json/zerobyte.json). Update docs (docs/AI.md) to require explicit "tarball" mode for fetch_and_deploy_gh_release, add helper notes and best-practices, and include a new get_latest_github_release usage. Also switch the shellscript formatter in .vscode/settings.json to foxundermoon.shell-format. The installer fetches required binaries (restic, rclone, shoutrrr), installs Bun, builds Zerobyte, configures a systemd service, and prepares runtime directories and env config.

frontend/public/json/zerobyte.json

@@ -0,0 +1,40 @@
+{
+    "name": "Zerobyte",
+    "slug": "zerobyte",
+    "categories": [
+        7
+    ],
+    "date_created": "2026-02-18",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 4096,
+    "documentation": "https://github.com/nicotsx/zerobyte#readme",
+    "website": "https://github.com/nicotsx/zerobyte",
+    "logo": "https://cdn.jsdelivr.net/gh/nicotsx/zerobyte@main/public/images/favicon.svg",
+    "config_path": "/opt/zerobyte/.env",
+    "description": "Zerobyte is a backup automation tool built on top of Restic that provides a modern web interface to schedule, manage, and monitor encrypted backups across multiple storage backends including NFS, SMB, WebDAV, SFTP, S3, and local directories.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/zerobyte.sh",
+            "resources": {
+                "cpu": 2,
+                "ram": 4096,
+                "hdd": 10,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "For remote mount support (NFS, SMB, WebDAV, SFTP), enable FUSE device passthrough on the LXC container.",
+            "type": "info"
+        }
+    ]
+}