fix: improve cross-device evidence, request diagnostics and prompt efficiency

apps/showcase_ui/src/app/components/agent-stream/agent-stream.component.ts

@@ -2,6 +2,7 @@ import { ExplorationMessage, Demonstration } from '../../services/exploration.se
 import { mergeConversation } from '../../utils/exploration-timeline.util';
 import { TaskIdCopyComponent } from '../task-id-copy/task-id-copy.component';
 import { TaskHistoryComponent } from '../task-history/task-history.component';
+import { LlmRequestStatusComponent } from '../llm-request-status/llm-request-status.component';
 import { AutomationPanelComponent } from '../automation-panel/automation-panel.component';
 import { UiLabelPipe } from '../../utils/ui-label.pipe';
 /**
@@ -246,7 +247,7 @@ export type { MarkdownSegment, MarkdownLine, NoteMilestone, ParsedNote, StreamRe
 @Component({
   selector: 'app-agent-stream',
   standalone: true,
-  imports: [TaskIdCopyComponent, UiLabelPipe, CommonModule, FormsModule, OverlayModule, TaskHistoryComponent, AutomationPanelComponent, TestResultBadgeComponent, TestResultCardComponent, TaskBatchFilterComponent],
+  imports: [LlmRequestStatusComponent, TaskIdCopyComponent, UiLabelPipe, CommonModule, FormsModule, OverlayModule, TaskHistoryComponent, AutomationPanelComponent, TestResultBadgeComponent, TestResultCardComponent, TaskBatchFilterComponent],
   templateUrl: './agent-stream.component.html',
   styleUrl: './agent-stream.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush
@@ -396,6 +397,7 @@ export class AgentStreamComponent implements AfterViewInit {
   public expandedActionCards = signal<Set<string>>(new Set<string>());
   public collapsedActionCards = signal<Set<string>>(new Set<string>());
   public retryClock = signal<number>(Date.now());
+  public hasModelRequest = signal(false);
 
   // Performance caches for parameter and event extractions
   private actionParamsCache = new WeakMap<any, ActionParam[]>();
@@ -470,6 +472,7 @@ export class AgentStreamComponent implements AfterViewInit {
   });
 
   public showPlanningLoader = computed(() => {
+    if (this.hasModelRequest()) return false;
     const isRunning = this.agentService.agentStatus() === 'running';
     const currentSessionId = this.agentService.currentSessionId();
     const runningSessionId = this.agentService.runningSessionId();