feat: glass effect toggle, media refresh timing fix, page transition perf

app/src/main/java/top/yeij/hearth/webview/JsBridge.kt

@@ -4,6 +4,7 @@ import android.util.Log
 import top.yeij.hearth.app.AppRepository
 import top.yeij.hearth.card.Card
 import top.yeij.hearth.card.CardRepository
+import top.yeij.hearth.media.MediaInfo
 import top.yeij.hearth.media.MediaSessionSource
 import top.yeij.hearth.webapp.Tab
 import top.yeij.hearth.webapp.WebApp
@@ -283,15 +284,27 @@ class JsBridge(
 
     // 注册媒体会话监听，回调推送给 H5（info 为 null 时推 "null"）
     // Register media session listener; push callbacks to H5 (push "null" when info is null)
+    private var mediaSourceRef: MediaSessionSource? = null
+
     fun setMediaListener(source: MediaSessionSource, webView: android.webkit.WebView) {
-        source.start { info ->
-            webView.post {
-                val json = info?.toJson() ?: "null"
-                webView.evaluateJavascript(
-                    "window.HearthEvents && window.HearthEvents.mediaSessionChanged($json);",
-                    null
-                )
-            }
+        mediaSourceRef = source
+        source.start { info -> pushMedia(info, webView) }
+    }
+
+    // H5 页面就绪后重新拉取一次媒体：修复启动时推送早于页面渲染的时序问题
+    // Re-pull media once the H5 page is ready: fixes the startup timing where the
+    // push happens before the page has rendered
+    fun refreshMedia() {
+        mediaSourceRef?.refresh()
+    }
+
+    private fun pushMedia(info: MediaInfo?, webView: android.webkit.WebView) {
+        webView.post {
+            val json = info?.toJson() ?: "null"
+            webView.evaluateJavascript(
+                "window.HearthEvents && window.HearthEvents.mediaSessionChanged($json);",
+                null
+            )
         }
     }
 }