Delete kan (ct) after migration to ProxmoxVE (#1885)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

json/kan.json

@@ -1,49 +0,0 @@
-{
-  "name": "Kan",
-  "slug": "kan",
-  "categories": [
-    25
-  ],
-  "date_created": "2026-04-04",
-  "type": "ct",
-  "updateable": true,
-  "privileged": false,
-  "has_arm": false,
-  "interface_port": 3000,
-  "documentation": "https://github.com/kanbn/kan#readme",
-  "website": "https://kan.bn/",
-  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/kan.webp",
-  "description": "Kan is an open-source Kanban board and project management tool built with Next.js and PostgreSQL.",
-  "install_methods": [
-    {
-      "type": "default",
-      "script": "ct/kan.sh",
-      "config_path": "/opt/kan/.env",
-      "resources": {
-        "cpu": 4,
-        "ram": 4096,
-        "hdd": 12,
-        "os": "Debian",
-        "version": "13"
-      }
-    }
-  ],
-  "default_credentials": {
-    "username": null,
-    "password": null
-  },
-  "notes": [
-    {
-      "text": "Building from source requires significant resources and may take several minutes.",
-      "type": "warning"
-    },
-    {
-      "text": "Update NEXT_PUBLIC_BASE_URL and BETTER_AUTH_TRUSTED_ORIGINS in /opt/kan/.env if accessing from a different hostname or via reverse proxy. After changing, run: rm -rf /opt/kan/apps/web/.next /opt/kan/.turbo && cd /opt/kan && NEXT_PUBLIC_USE_STANDALONE_OUTPUT=true pnpm build --filter=@kan/web && cp -r /opt/kan/apps/web/.next/static /opt/kan/apps/web/.next/standalone/apps/web/.next/ && cp -r /opt/kan/apps/web/public /opt/kan/apps/web/.next/standalone/apps/web/ && systemctl restart kan",
-      "type": "info"
-    },
-    {
-      "text": "Trello integration requires TRELLO_APP_API_KEY and TRELLO_APP_API_SECRET in /opt/kan/.env. Create a Power-Up at https://trello.com/power-ups/admin to obtain these credentials, then rebuild (see above).",
-      "type": "info"
-    }
-  ]
-}