feat: 优化 AudioWorklet 加载逻辑，增加 Blob URL 兼容性和多基址回退方案

src/voice/s2s-ws-client.js

@@ -478,11 +478,11 @@ export class S2sWsRealtimeClient extends EventTarget {
       }
     }
 
-    // The worklets live at the repo root, one level up from this module.
-    // ?v=2 busts the browser cache so the fixed (unmuted) playback worklet
-    // always loads instead of a stale muted copy.
-    // 多基址回退：打包环境优先后端 http（tauri.localhost 无法加载 worklet 模块），
-    // 浏览器开发回退页面源 / 相对路径。
+    // AudioWorklet 加载（WebView2/打包兼容）：
+    // 1) 先直接 addModule(http 地址) —— 浏览器/常规环境快路径
+    // 2) 失败则 fetch 源码 → Blob URL → addModule —— 打包 WebView2 下
+    //    tauri.localhost 自定义协议与跨域均受限，Blob 同源最稳
+    // 3) 多个候选基址（后端 http / 页面源 / 相对路径）
     const candidates = [
       window.VOICE_WORKLETS_BASE,
       `${window.location.origin}/voice-worklets/`,
@@ -490,6 +490,27 @@ export class S2sWsRealtimeClient extends EventTarget {
     ].filter(Boolean);
     let workletErr = null;
     let workletOk = false;
+
+    const addViaBlob = async (name) => {
+      for (const base of candidates) {
+        try {
+          const res = await fetch(base + name, { cache: "no-store" });
+          if (!res.ok) continue;
+          const src = await res.text();
+          const url = URL.createObjectURL(new Blob([src], { type: "application/javascript" }));
+          try {
+            await ctx.audioWorklet.addModule(url);
+            return true;
+          } finally {
+            URL.revokeObjectURL(url);
+          }
+        } catch (err) {
+          workletErr = err;
+        }
+      }
+      return false;
+    };
+
     for (const base of candidates) {
       try {
         await ctx.audioWorklet.addModule(base + "mic-capture.js?v=3");
@@ -498,9 +519,16 @@ export class S2sWsRealtimeClient extends EventTarget {
         break;
       } catch (err) {
         workletErr = err;
-        console.warn("[ws] worklet 加载失败，尝试备用地址:", base, err);
+        console.warn("[ws] worklet 直接加载失败，改走 Blob 方案:", base, err);
       }
     }
+    if (!workletOk) {
+      // 回退：fetch → Blob → addModule（WebView2 打包环境最稳）
+      const micOk = await addViaBlob("mic-capture.js?v=3");
+      const playOk = await addViaBlob("audio-playback.js?v=3");
+      workletOk = micOk && playOk;
+      if (workletOk) console.info("[ws] AudioWorklet 已通过 Blob URL 加载（WebView2 兼容模式）");
+    }
     if (!workletOk) throw workletErr || new Error("AudioWorklet 模块加载失败");
 
     const captureNode = new AudioWorkletNode(ctx, "mic-capture", {