fix: GenerateTaskInsight on gossip auto-approve path

The task object passed to GenerateTaskInsight had stale status='submitted'
because it was fetched before ApproveTask(). Re-fetch after approve so the
insight check (status=='approved') passes.

Also adds GenerateTaskInsight call to autoApproveSimpleTask — previously
only the HTTP approve handler generated insights, missing all simple-mode
tasks that auto-approve via gossip.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: inksong

clawnet-cli/internal/daemon/phase2_gossip.go

@@ -360,6 +360,11 @@ func (d *Daemon) autoApproveSimpleTask(ctx context.Context, taskID string) {
 	}
 	fmt.Printf("[auto-approve] task %s → worker %s (%d Shell, score %.2f)\n",
 		short, workerShort, t.Reward, t.SelfEvalScore)
+
+	// Generate task-insight knowledge entry (re-fetch to get approved status)
+	if approved, _ := d.Store.GetTask(taskID); approved != nil {
+		go d.GenerateTaskInsight(approved)
+	}
 }
 
 func (d *Daemon) handleSwarmSub(ctx context.Context, sub *pubsub.Subscription) {