CUB-122: Scaffold Control Center React frontend

frontend-legacy/src/app/directives/long-press.directive.ts

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+import {
+  Directive,
+  ElementRef,
+  EventEmitter,
+  OnDestroy,
+  Output,
+  Input,
+} from '@angular/core';
+
+// ============================================================================
+// Long-Press Directive — CUB-26
+// Emits after a sustained press (500ms default).
+// Used on agent cards to bypass the drawer and open Session Log directly.
+// ============================================================================
+
+@Directive({
+  selector: '[appLongPress]',
+  standalone: true,
+  host: {
+    '(mousedown)': 'onMouseDown($event)',
+    '(mouseup)': 'onMouseUp()',
+    '(mouseleave)': 'onMouseLeave()',
+    '(touchstart)': 'onTouchStart($event)',
+    '(touchend)': 'onTouchEnd()',
+    '(touchmove)': 'onTouchMove()',
+    '(contextmenu)': 'onContextMenu($event)',
+  },
+})
+export class LongPressDirective implements OnDestroy {
+  /** Duration in ms before a press counts as a long press. */
+  @Input() appLongPressDuration = 500;
+
+  /** Emits when a long press is detected. Payload is the original event. */
+  @Output() readonly appLongPress = new EventEmitter<MouseEvent | TouchEvent>();
+
+  private timer: ReturnType<typeof setTimeout> | null = null;
+  private isLongPress = false;
+
+  onMouseDown(event: MouseEvent): void {
+    this.isLongPress = false;
+    this.timer = setTimeout(() => {
+      this.isLongPress = true;
+      this.appLongPress.emit(event);
+    }, this.appLongPressDuration);
+  }
+
+  onMouseUp(): void {
+    this.clearTimer();
+  }
+
+  onMouseLeave(): void {
+    this.clearTimer();
+  }
+
+  onTouchStart(event: TouchEvent): void {
+    this.isLongPress = false;
+    this.timer = setTimeout(() => {
+      this.isLongPress = true;
+      this.appLongPress.emit(event);
+    }, this.appLongPressDuration);
+  }
+
+  onTouchEnd(): void {
+    this.clearTimer();
+  }
+
+  onTouchMove(): void {
+    // Cancel on touch move (finger moved)
+    this.clearTimer();
+  }
+
+  onContextMenu(event: MouseEvent): void {
+    // Prevent native context menu on long press
+    if (this.isLongPress) {
+      event.preventDefault();
+    }
+  }
+
+  ngOnDestroy(): void {
+    this.clearTimer();
+  }
+
+  private clearTimer(): void {
+    if (this.timer !== null) {
+      clearTimeout(this.timer);
+      this.timer = null;
+    }
+  }
+}