收口原生分享桥接边界

将 Expo 分享目标状态收口到 share 模块

将 Tauri 分享目标与剪贴板 fallback 响应收口到 share 模块

同步两端分享结构门禁和共享记忆

apps/mobile-shell/scripts/check-config.mjs

@@ -1285,12 +1285,23 @@ for (const snippet of [
   'normalizeHostBridgeShareOpenPayload',
   'const explicitPayload = normalizeHostBridgeShareOpenPayload(payload);',
   'normalizeHostBridgeShareOpenPayload(currentShareTarget)',
+  'setMobileHostBridgeShareTarget',
+  'resetMobileHostBridgeShareTargetForTest',
 ]) {
   if (!shareSource.includes(snippet)) {
     throw new Error(`mobile shell share URL policy missing ${snippet}`);
   }
 }
 
+if (
+  !dispatchSource.includes('setMobileHostBridgeShareTarget(request.payload)') ||
+  !dispatchSource.includes('openShare(request.payload)') ||
+  dispatchSource.includes('let currentShareTarget') ||
+  dispatchSource.includes('normalizeHostBridgeShareOpenPayload(currentShareTarget)')
+) {
+  throw new Error('mobile shell share HostBridge methods must delegate to share module');
+}
+
 if (shareSource.includes("const WEB_APP_ORIGIN = 'https://app.genarrative.world'")) {
   throw new Error('mobile shell share URL policy must reuse the shared web origin');
 }