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/neko.json

@@ -1,44 +1,44 @@
 {
-    "name": "Neko",
-    "slug": "neko",
-    "categories": [
-        13
-    ],
-    "date_created": "2026-04-13",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 8080,
-    "documentation": "https://neko.m1k1o.net/docs/v3/configuration",
-    "website": "https://neko.m1k1o.net/",
-    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/neko.webp",
-    "config_path": "/etc/neko/neko.yaml",
-    "description": "A self-hosted virtual browser that uses WebRTC to stream a desktop environment to multiple users for watch parties, collaborative browsing, and interactive presentations.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/neko.sh",
-            "resources": {
-                "cpu": 4,
-                "ram": 4096,
-                "hdd": 12,
-                "os": "Debian",
-                "version": "12"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": null,
-        "password": "admin"
+  "name": "Neko",
+  "slug": "neko",
+  "categories": [
+    13
+  ],
+  "date_created": "2026-04-13",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 8080,
+  "documentation": "https://neko.m1k1o.net/docs/v3/configuration",
+  "website": "https://neko.m1k1o.net/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/neko.webp",
+  "description": "A self-hosted virtual browser that uses WebRTC to stream a desktop environment to multiple users for watch parties, collaborative browsing, and interactive presentations.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/neko.sh",
+      "config_path": "/etc/neko/neko.yaml",
+      "resources": {
+        "cpu": 4,
+        "ram": 4096,
+        "hdd": 12,
+        "os": "Debian",
+        "version": "12"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": "admin"
+  },
+  "notes": [
+    {
+      "text": "Login is password-only: 'admin' for admin, 'neko' for regular user. Change both in /etc/neko/neko.yaml.",
+      "type": "warning"
     },
-    "notes": [
-        {
-            "text": "Login is password-only: 'admin' for admin, 'neko' for regular user. Change both in /etc/neko/neko.yaml.",
-            "type": "warning"
-        },
-        {
-            "text": "Firefox ESR is installed as the default browser. The virtual display runs at 1280x720.",
-            "type": "info"
-        }
-    ]
-}
+    {
+      "text": "Firefox ESR is installed as the default browser. The virtual display runs at 1280x720.",
+      "type": "info"
+    }
+  ]
+}