feat(mcp): upgrade rmcp to 0.15.0 and advertise MCP Apps UI extension capability (#6927)

ui/desktop/openapi.json

@@ -6755,6 +6755,19 @@
           "inlineMessage"
         ]
       },
+      "TaskSupport": {
+        "oneOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "string"
+          },
+          {
+            "type": "string"
+          }
+        ]
+      },
       "TelemetryEventRequest": {
         "type": "object",
         "required": [
@@ -6899,6 +6912,16 @@
           "description": {
             "type": "string"
           },
+          "execution": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/ToolExecution"
+              },
+              {
+                "type": "object"
+              }
+            ]
+          },
           "icons": {
             "type": "array",
             "items": {
@@ -6964,6 +6987,21 @@
           }
         }
       },
+      "ToolExecution": {
+        "type": "object",
+        "properties": {
+          "taskSupport": {
+            "anyOf": [
+              {
+                "$ref": "#/components/schemas/TaskSupport"
+              },
+              {
+                "type": "object"
+              }
+            ]
+          }
+        }
+      },
       "ToolInfo": {
         "type": "object",
         "description": "Information about the tool used for building prompts",

ui/desktop/src/api/types.gen.ts

@@ -1148,6 +1148,8 @@ export type SystemNotificationContent = {
 
 export type SystemNotificationType = 'thinkingMessage' | 'inlineMessage';
 
+export type TaskSupport = string;
+
 export type TelemetryEventRequest = {
     event_name: string;
     properties?: {
@@ -1198,6 +1200,9 @@ export type Tool = {
         [key: string]: unknown;
     };
     description?: string;
+    execution?: ToolExecution | {
+        [key: string]: unknown;
+    };
     icons?: Array<Icon>;
     inputSchema: {
         [key: string]: unknown;
@@ -1224,6 +1229,12 @@ export type ToolConfirmationRequest = {
     toolName: string;
 };
 
+export type ToolExecution = {
+    taskSupport?: TaskSupport | {
+        [key: string]: unknown;
+    };
+};
+
 /**
  * Information about the tool used for building prompts
  */