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

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
  */