fix(team): notify lead on task create with startImmediately

Extract sendUserTaskStartNotification as reusable private method.
When a task is created via UI directly in "In Progress" column
(startImmediately=true), the controller's maybeNotifyAssignedOwner
skips the lead. Now createTask sends the notification to the lead
with full description, prompt, and task_get instructions.

src/main/services/team/TeamDataService.ts

@@ -877,6 +877,19 @@ export class TeamDataService {
       ...(shouldStart ? { startImmediately: true } : {}),
     }) as TeamTask;
 
+    // Controller's maybeNotifyAssignedOwner skips the lead (owner === lead).
+    // For user-created tasks with startImmediately, ensure the lead also gets notified.
+    if (shouldStart) {
+      try {
+        const leadName = await this.resolveLeadName(teamName);
+        if (this.isLeadOwner(task.owner!, leadName)) {
+          await this.sendUserTaskStartNotification(teamName, task);
+        }
+      } catch {
+        /* best-effort */
+      }
+    }
+
     return task;
   }
 
@@ -945,10 +958,21 @@ export class TeamDataService {
     this.getController(teamName).tasks.startTask(taskId, 'user');
 
     if (task.owner) {
+      await this.sendUserTaskStartNotification(teamName, task);
+    }
+
+    return { notifiedOwner: !!task.owner };
+  }
+
+  /**
+   * Send a task start notification from the user to the task owner.
+   * Includes description, prompt, and task_get/task_complete instructions.
+   * Used by startTaskByUser and createTask (startImmediately).
+   */
+  private async sendUserTaskStartNotification(teamName: string, task: TeamTask): Promise<void> {
+    if (!task.owner) return;
     try {
-        const parts = [
+      const parts = [`**start working on task now** ${this.getTaskLabel(task)} "${task.subject}"`];
-          `**start working on task now** ${this.getTaskLabel(task)} "${task.subject}"`,
-        ];
       if (task.description?.trim()) {
         parts.push(`\nDetails:\n${task.description.trim()}`);
       }
@@ -980,9 +1004,6 @@ export class TeamDataService {
     }
   }
 
-    return { notifiedOwner: !!task.owner };
-  }
-
   async updateTaskStatus(
     teamName: string,
     taskId: string,