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/storyteller.json

@@ -1,48 +1,48 @@
 {
-    "name": "Storyteller",
-    "slug": "storyteller",
-    "categories": [
-        13
-    ],
-    "date_created": "2026-03-25",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 8001,
-    "documentation": "https://storyteller-platform.dev/docs/welcome",
-    "website": "https://storyteller-platform.dev/",
-    "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/storyteller.webp",
-    "config_path": "/opt/storyteller/.env",
-    "description": "Storyteller is a self-hosted platform for creating and reading ebooks with synced narration, combining audiobooks and ebooks with automatic synchronization.",
-    "install_methods": [
-        {
-            "type": "default",
-            "script": "ct/storyteller.sh",
-            "resources": {
-                "cpu": 4,
-                "ram": 10240,
-                "hdd": 16,
-                "os": "Debian",
-                "version": "13"
-            }
-        }
-    ],
-    "default_credentials": {
-        "username": null,
-        "password": null
+  "name": "Storyteller",
+  "slug": "storyteller",
+  "categories": [
+    13
+  ],
+  "date_created": "2026-03-25",
+  "type": "ct",
+  "updateable": true,
+  "privileged": false,
+  "interface_port": 8001,
+  "documentation": "https://storyteller-platform.dev/docs/welcome",
+  "website": "https://storyteller-platform.dev/",
+  "logo": "https://cdn.jsdelivr.net/gh/selfhst/icons@main/webp/storyteller.webp",
+  "description": "Storyteller is a self-hosted platform for creating and reading ebooks with synced narration, combining audiobooks and ebooks with automatic synchronization.",
+  "install_methods": [
+    {
+      "type": "default",
+      "script": "ct/storyteller.sh",
+      "config_path": "/opt/storyteller/.env",
+      "resources": {
+        "cpu": 4,
+        "ram": 10240,
+        "hdd": 16,
+        "os": "Debian",
+        "version": "13"
+      }
+    }
+  ],
+  "default_credentials": {
+    "username": null,
+    "password": null
+  },
+  "notes": [
+    {
+      "text": "Minimum 8GB RAM recommended. AI-based transcription is resource-intensive.",
+      "type": "warning"
     },
-    "notes": [
-        {
-            "text": "Minimum 8GB RAM recommended. AI-based transcription is resource-intensive.",
-            "type": "warning"
-        },
-        {
-            "text": "Secret key is stored in `/opt/storyteller/.env`.",
-            "type": "info"
-        },
-        {
-            "text": "GPU acceleration is not available in the LXC version. Use CPU-based transcription.",
-            "type": "info"
-        }
-    ]
-}
+    {
+      "text": "Secret key is stored in `/opt/storyteller/.env`.",
+      "type": "info"
+    },
+    {
+      "text": "GPU acceleration is not available in the LXC version. Use CPU-based transcription.",
+      "type": "info"
+    }
+  ]
+}