feat: enhance daemon dispatching, device readiness fallback, and live streaming UI

- Admin Console & Task Queue: add cancellation, session startup progress endpoints, and support ingress metadata
- Diagnostics & Runtime: enhance ADB probe to prefer unlocked devices and synchronize with readiness engine
- MCP Server: dispatch tasks through Artemis Daemon scheduler with fallback to standalone runner, improve action overlays
- Showcase UI: improve session auto-selection with pinning support, render startup progress, and refine stream styling
- CLI & Makefile: expose server lifecycle commands (restart, stop, status)
- Configuration: ignore runtime server state file in .gitignore

apps/showcase_ui/src/app/pages/home/home.component.html

@@ -1375,6 +1375,31 @@
                     <span>{{ isRefreshingDiagnostics() ? 'Checking...' : 'Check Again' }}</span>
                   </button>
                 </div>
+
+                <!-- Multi-Device Switcher if multiple devices detected -->
+                @if (connectedDevices().length > 1) {
+                  <div class="multi-device-switcher" style="margin-top: 12px;">
+                    <span class="switcher-label">Select Active Device:</span>
+                    <div class="switcher-chips">
+                      @for (dev of connectedDevices(); track dev.serial) {
+                        <button
+                          type="button"
+                          class="device-chip-btn"
+                          [class.selected]="dev.serial === activeDevice()?.serial"
+                          (click)="selectTargetDevice(dev.serial)"
+                        >
+                          <span class="material-symbols-outlined chip-icon">
+                            phone_android
+                          </span>
+                          <span>{{ dev.model || dev.serial }}</span>
+                          @if (dev.serial === activeDevice()?.serial) {
+                            <span class="active-check">✓ Active</span>
+                          }
+                        </button>
+                      }
+                    </div>
+                  </div>
+                }
               </div>
             }
 

apps/showcase_ui/src/app/pages/workspace/workspace.component.html

@@ -116,11 +116,11 @@
                 <span class="material-symbols-outlined">close</span>
               </button>
               
-              <!-- Stop Button (Visible when task is running) -->
+              <!-- Stop Button (Visible when currently viewed task is active) -->
               <button *ngIf="isTaskRunning()" type="button" class="dock-circle-btn btn-stop" [disabled]="isSubmitting"
                 (click)="stopTask($event)"
-                title="Stop running task"
-                aria-label="Stop running task"
+                [title]="stopButtonTitle()"
+                [attr.aria-label]="stopButtonTitle()"
               >
                 <span class="material-symbols-outlined">stop</span>
               </button>
@@ -161,12 +161,12 @@
           </div>
         </div>
 
-        <!-- Separate Standalone Stop Button Beside the Capsule (Visible when task is running) -->
+        <!-- Separate Standalone Stop Button Beside the Capsule (Visible when currently viewed task is active) -->
         <button *ngIf="isTaskRunning()" type="button" class="standalone-stop-btn"
           [disabled]="isSubmitting"
           (click)="stopTask($event)"
-          title="Stop running task"
-          aria-label="Stop running task"
+          [title]="stopButtonTitle()"
+          [attr.aria-label]="stopButtonTitle()"
         >
           <span class="material-symbols-outlined">stop</span>
         </button>

apps/showcase_ui/src/app/pages/workspace/workspace.component.ts

@@ -77,10 +77,29 @@ export class WorkspaceComponent implements OnInit {
   }
 
   /**
-   * Computed boolean whether a task is currently executing or active
+   * Computed boolean whether the currently viewed task is actively running or paused.
+   * Only displays the stop/cancel button when inspecting an active task.
    */
   public isTaskRunning = computed(() => {
-    return this.agentService.isRunningTask();
+    return this.agentService.isCurrentSessionRunning();
+  });
+
+  /**
+   * Dynamic tooltip and label indicating which task will be stopped
+   */
+  public stopButtonTitle = computed(() => {
+    const session = this.agentService.currentSession();
+    if (session?.initial_goal) {
+      const truncated = session.initial_goal.length > 45
+        ? session.initial_goal.substring(0, 42) + '...'
+        : session.initial_goal;
+      return `Stop current task: "${truncated}"`;
+    }
+    const curId = this.agentService.currentSessionId();
+    if (curId) {
+      return `Stop current task (${curId})`;
+    }
+    return 'Stop current running task';
   });
 
   /**
@@ -216,7 +235,7 @@ export class WorkspaceComponent implements OnInit {
   }
 
   /**
-   * Stop currently running task
+   * Stop currently viewed task
    */
   public stopTask(event?: MouseEvent): void {
     if (event) {
@@ -225,9 +244,10 @@ export class WorkspaceComponent implements OnInit {
     if (!this.isTaskRunning()) {
       return;
     }
+    const targetSessionId = this.agentService.currentSessionId();
     this.isSubmitting = true;
     this.errorMessage = null;
-    this.agentService.stopTask(false);
+    this.agentService.stopTask(targetSessionId, false);
     setTimeout(() => {
       this.isSubmitting = false;
     }, 400);