feat(holographic-card): 接入 ManualTiltSlider + 修 touchend 行为

- 与 LenticularCard 对齐的 showSlider / sliderValue / v-model 接口
- 触摸结束不再 emit (0,0)

Co-Authored-By: Claude <noreply@anthropic.com>

frontend/components/lenticular/HolographicCard.vue

@@ -32,6 +32,12 @@
         <text class="holo-hint-text">{{ hintText }}</text>
       </view>
     </view>
+    <ManualTiltSlider
+      v-if="showSlider"
+      :value="sliderValue"
+      @change="v => emit('update:sliderValue', v)"
+      @reset="emit('sliderReset')"
+    />
   </view>
 </template>
 
@@ -39,6 +45,7 @@
 import { ref, computed, onMounted, onUnmounted, watch, nextTick } from 'vue'
 import { HolographicEngine } from '@/utils/webgl/holographic-engine.js'
 import { loadTextureImage } from '@/utils/laser-card/laserPreviewWebgl.js'
+import ManualTiltSlider from './ManualTiltSlider.vue'
 
 const props = defineProps({
   baseImageSrc: { type: String, default: '' },
@@ -62,9 +69,12 @@ const props = defineProps({
   showHint: { type: Boolean, default: true },
   maxDPR: { type: Number, default: 2 },
   skipBuiltInTouch: { type: Boolean, default: false },
+  // 新增：手动滑块接入（与 LenticularCard 对齐）
+  showSlider:  { type: Boolean, default: false },
+  sliderValue: { type: Number,  default: 0.5 },
 })
 
-const emit = defineEmits(['simulate', 'ready', 'error', 'fpsUpdate'])
+const emit = defineEmits(['simulate', 'update:sliderValue', 'sliderReset', 'ready', 'error', 'fpsUpdate'])
 
 const webglCanvas = ref(null)
 const webglReady = ref(false)
@@ -128,7 +138,8 @@ function onTouchMove(e) {
 }
 function onTouchEnd() {
   if (props.skipBuiltInTouch) return
-  emit('simulate', 0, 0)
+  // 修改前：emit('simulate', 0, 0)
+  // 修改后：触摸结束不再发 (0,0)
 }
 
 function syncEngineParams() {