release: bump version to 0.29.0

frontend/public/earth/index.html

@@ -10,7 +10,8 @@
       "three": "https://esm.sh/three@0.128.0",
       "simplex-noise": "https://esm.sh/simplex-noise@4.0.1",
       "satellite.js": "https://esm.sh/satellite.js@5.0.0",
-      "hls.js": "https://esm.sh/hls.js@1.6.15"
+      "hls.js": "https://esm.sh/hls.js@1.6.15",
+      "astronomy-engine": "https://esm.sh/astronomy-engine@2.1.19"
     }
   }
   </script>
@@ -64,6 +65,9 @@
           <button id="layer-panel-collapse" class="layer-panel-btn" type="button" aria-label="折叠图层列表" title="折叠">
             <span class="material-symbols-rounded">expand_less</span>
           </button>
+          <button class="layer-panel-btn hud-panel-close" type="button" data-close-panel="layer-toggles" aria-label="关闭图层面板" title="关闭">
+            <span class="material-symbols-rounded">close</span>
+          </button>
         </div>
 
         <!-- Collapsible body -->