Refine GPS trace cleanup and marker rendering

miniprogram/pages/map/map.ts

@@ -31,7 +31,7 @@ type MapPageData = MapEngineViewState & {
   showRightButtonGroups: boolean
   showBottomDebugButton: boolean
 }
-const INTERNAL_BUILD_VERSION = 'map-build-172'
+const INTERNAL_BUILD_VERSION = 'map-build-175'
 const REMOTE_GAME_CONFIG_URL = 'https://oss-mbh5.colormaprun.com/wxmini/test/game.json'
 let mapEngine: MapEngine | null = null
 function buildSideButtonVisibility(mode: SideButtonMode) {
@@ -525,6 +525,12 @@ Page({
     }
   },
 
+  handleClearMapTestArtifacts() {
+    if (mapEngine) {
+      mapEngine.handleClearMapTestArtifacts()
+    }
+  },
+
   handleOverlayTouch() {},
 
   handlePunchAction() {

miniprogram/pages/map/map.wxml

@@ -274,6 +274,9 @@
             <view class="control-chip control-chip--primary" bindtap="handleRecenter">回到首屏</view>
             <view class="control-chip control-chip--secondary" bindtap="handleRotationReset">旋转归零</view>
           </view>
+          <view class="control-row">
+            <view class="control-chip control-chip--secondary" bindtap="handleClearMapTestArtifacts">清空测试痕迹</view>
+          </view>
         </view>
 
         <view class="debug-section">