support plugins in external agent config migration (#17855)

codex-rs/app-server-protocol/schema/json/codex_app_server_protocol.schemas.json

@@ -7509,6 +7509,16 @@
           "description": {
             "type": "string"
           },
+          "details": {
+            "anyOf": [
+              {
+                "$ref": "#/definitions/v2/MigrationDetails"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
           "itemType": {
             "$ref": "#/definitions/v2/ExternalAgentConfigMigrationItemType"
           }
@@ -7524,6 +7534,7 @@
           "AGENTS_MD",
           "CONFIG",
           "SKILLS",
+          "PLUGINS",
           "MCP_SERVER_CONFIG"
         ],
         "type": "string"
@@ -9551,6 +9562,20 @@
           }
         ]
       },
+      "MigrationDetails": {
+        "properties": {
+          "plugins": {
+            "items": {
+              "$ref": "#/definitions/v2/PluginsMigration"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "plugins"
+        ],
+        "type": "object"
+      },
       "ModeKind": {
         "description": "Initial collaboration mode to use when the TUI starts.",
         "enum": [
@@ -10473,6 +10498,24 @@
         "title": "PluginUninstallResponse",
         "type": "object"
       },
+      "PluginsMigration": {
+        "properties": {
+          "marketplaceName": {
+            "type": "string"
+          },
+          "pluginNames": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "marketplaceName",
+          "pluginNames"
+        ],
+        "type": "object"
+      },
       "ProfileV2": {
         "additionalProperties": true,
         "properties": {