refactor: move config_path from root into install_methods

Migrated all 80 app JSON files to place config_path inside each
install_methods object instead of at the root level. This allows
different install methods (e.g. Debian vs Alpine) to have distinct
config paths.

Also updated AGENTS.md JSON structure example to reflect the change.

json/trek.json

@@ -1,44 +1,44 @@
 {
-    "name": "TREK",
-    "slug": "trek",
-    "categories": [
-        0
-    ],
-    "date_created": "2026-04-02",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 3000,
-    "documentation": "https://github.com/mauriceboe/TREK#readme",
-    "website": "https://github.com/mauriceboe/TREK",
-    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/trek.webp",
-    "config_path": "/opt/trek/server/.env",
-    "description": "TREK is a self-hosted, real-time collaborative travel planner with interactive maps, budgets, packing lists, weather forecasts, PWA support, and multi-user collaboration via WebSocket.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/trek.sh",
-            "resources": {
-                "cpu": 2,
-                "ram": 2048,
-                "hdd": 8,
-                "os": "Debian",
-                "version": "13"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": null,
-        "password": null
+  "name": "TREK",
+  "slug": "trek",
+  "categories": [
+    0
+  ],
+  "date_created": "2026-04-02",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 3000,
+  "documentation": "https://github.com/mauriceboe/TREK#readme",
+  "website": "https://github.com/mauriceboe/TREK",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/trek.webp",
+  "description": "TREK is a self-hosted, real-time collaborative travel planner with interactive maps, budgets, packing lists, weather forecasts, PWA support, and multi-user collaboration via WebSocket.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/trek.sh",
+      "config_path": "/opt/trek/server/.env",
+      "resources": {
+        "cpu": 2,
+        "ram": 2048,
+        "hdd": 8,
+        "os": "Debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "The first user to register becomes the admin.",
+      "type": "info"
     },
-    "notes": [
-        {
-            "text": "The first user to register becomes the admin.",
-            "type": "info"
-        },
-        {
-            "text": "ENCRYPTION_KEY is auto-generated during setup. See `/opt/trek/server/.env`.",
-            "type": "info"
-        }
-    ]
-}
+    {
+      "text": "ENCRYPTION_KEY is auto-generated during setup. See `/opt/trek/server/.env`.",
+      "type": "info"
+    }
+  ]
+}