feat(new-scripts): add TREK, SoulSync, UpSnap, Anchor, Slink

- TREK: Self-hosted travel planner (Node.js 22, Express, SQLite)
- SoulSync: Music discovery & automation (Python 3.11, Flask)
- UpSnap: Wake-on-LAN web app (Go binary, PocketBase)
- Anchor: Offline-first note taking (NestJS, Next.js, PostgreSQL)
- Slink: Image sharing platform (PHP/Symfony, SvelteKit, Redis, Caddy)

json/anchor.json

@@ -0,0 +1,44 @@
+{
+    "name": "Anchor",
+    "slug": "anchor",
+    "categories": [
+        12
+    ],
+    "date_created": "2026-04-02",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 3000,
+    "documentation": "https://github.com/ZhFahim/anchor#readme",
+    "website": "https://github.com/ZhFahim/anchor",
+    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/anchor.webp",
+    "config_path": "/opt/anchor/.env",
+    "description": "Anchor is an offline-first, self-hosted note-taking application with rich text editing, real-time sync across devices, note sharing, tags, attachments, OIDC authentication, and admin panel.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/anchor.sh",
+            "resources": {
+                "cpu": 2,
+                "ram": 2048,
+                "hdd": 10,
+                "os": "Debian",
+                "version": "13"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": [
+        {
+            "text": "The first user to register becomes the admin.",
+            "type": "info"
+        },
+        {
+            "text": "OIDC can be configured via environment variables in `/opt/anchor/.env` or the admin panel.",
+            "type": "info"
+        }
+    ]
+}