refactor(ui): 将相机预览组件从 TextureView 包装到容器布局中

- 将 activity_inspection.xml 中的 cameraPreview TextureView 移动到新的 FrameLayout 容器内
- 更新所有对 cameraPreview 的可见性控制以使用 cameraPreviewContainer
- 保持相机预览功能逻辑不变，仅调整视图层次结构
- 确保相机预览、缩放文本和提示文本的显示/隐藏行为正常工作
- 维持现有的约束布局配置和尺寸比例设置

app/src/main/java/com/nova/brain/glass/ui/InspectionActivity.kt

@@ -63,7 +63,7 @@ class InspectionActivity :
             currentZoomLevel = GlassMediaServiceHelper.getZoomLevel().coerceAtLeast(1)
             maxZoomLevel = GlassMediaServiceHelper.getMaxZoomLevel().coerceAtLeast(1)
             runOnUiThread {
-                binding.cameraPreview.visibility = View.VISIBLE
+                binding.cameraPreviewContainer.visibility = View.VISIBLE
                 binding.zoomText.visibility = View.VISIBLE
                 updateZoomText()
                 binding.hint.text = "预览中，单击预览或语音输入“拍照”完成拍摄"
@@ -73,7 +73,7 @@ class InspectionActivity :
         override fun onCameraClosed() {
             isPreviewActive = false
             runOnUiThread {
-                binding.cameraPreview.visibility = View.GONE
+                binding.cameraPreviewContainer.visibility = View.GONE
                 binding.zoomText.visibility = View.GONE
             }
         }
@@ -81,7 +81,7 @@ class InspectionActivity :
         override fun onError(code: Int, message: String?) {
             isPreviewActive = false
             runOnUiThread {
-                binding.cameraPreview.visibility = View.GONE
+                binding.cameraPreviewContainer.visibility = View.GONE
                 binding.zoomText.visibility = View.GONE
                 binding.hint.text = "相机预览失败，请重试"
                 (message ?: "相机预览失败").showMessage()
@@ -175,7 +175,7 @@ class InspectionActivity :
         if (binding.cameraPreview.isAvailable) {
             startCameraPreview()
         } else {
-            binding.cameraPreview.visibility = View.VISIBLE
+            binding.cameraPreviewContainer.visibility = View.VISIBLE
             binding.zoomText.visibility = View.VISIBLE
         }
     }
@@ -187,7 +187,7 @@ class InspectionActivity :
             GlassMediaServiceHelper.startCameraShare(surface, cameraSurfaceCallback)
         }.onFailure {
             isPreviewRequested = false
-            binding.cameraPreview.visibility = View.GONE
+            binding.cameraPreviewContainer.visibility = View.GONE
             binding.zoomText.visibility = View.GONE
             binding.hint.text = "相机预览启动失败，请重试"
             (it.message ?: "相机预览启动失败").showMessage()
@@ -200,7 +200,7 @@ class InspectionActivity :
         runCatching {
             GlassMediaServiceHelper.stopCameraShare(cameraSurfaceCallback)
         }
-        binding.cameraPreview.visibility = View.GONE
+        binding.cameraPreviewContainer.visibility = View.GONE
         binding.zoomText.visibility = View.GONE
     }
 

app/src/main/res/layout/activity_inspection.xml

@@ -104,8 +104,8 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/baseRecyclerView" />
 
-        <TextureView
-            android:id="@+id/cameraPreview"
+        <FrameLayout
+            android:id="@+id/cameraPreviewContainer"
             android:layout_width="0dp"
             android:layout_height="0dp"
             android:layout_marginStart="24dp"
@@ -118,7 +118,13 @@
             app:layout_constraintDimensionRatio="3:4"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/hint" />
+            app:layout_constraintTop_toBottomOf="@id/hint">
+
+            <TextureView
+                android:id="@+id/cameraPreview"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" />
+        </FrameLayout>
 
         <TextView
             android:id="@+id/zoomText"