收紧移动壳分享目标缓存

移动壳分享目标缓存改为保存规范化后的分享 payload

移动壳分享测试覆盖缓存裁剪外层目标和私有字段

移动壳配置检查锁定分享目标缓存结构

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

@@ -1643,6 +1643,9 @@ for (const snippet of [
   'type HostBridgeRequest',
   'const explicitPayload = normalizeHostBridgeShareOpenPayload(request.payload);',
   'normalizeHostBridgeShareOpenPayload(currentShareTarget)',
+  'type ShareOpenPayload',
+  'let currentShareTarget: ShareOpenPayload | null = null;',
+  'currentShareTarget = normalizedTarget.payload;',
   'setMobileHostBridgeShareTarget',
   'request: HostBridgeRequest',
   "throw invalidRequest('target is required')",
@@ -1671,6 +1674,7 @@ if (
 for (const snippet of [
   'resetMobileHostBridgeShareTargetForTest()',
   'uses cached work target when share.open has no explicit payload',
+  'stores only the normalized cached share payload',
   'keeps the previous cached target when a new target is missing or invalid',
   'maps native share sheet failures to stable host errors',
   'does not fall back to cached target when explicit payload is unsafe',