chore: 补提测试修复、新增测试工具和设计文档

- fix(test): 同步 listInventory 签名（补 series/spec 参数）
- test(backend): 新增 import_parse_test.go
- chore(backend): 新增 cmd/test_xls 调试工具
- docs: UI 筛选组件设计规范、Gemini 项目配置

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

todo/todo.json

@@ -1,9 +1,9 @@
 {
   "meta": {
     "title": "酒库管理系统 — 项目 TODO",
-    "updated_at": "2026-06-11T15:52:40.354Z"
+    "updated_at": "2026-06-14T00:13:09.458Z"
   },
-  "seq": 50,
+  "seq": 51,
   "items": [
     {
       "id": 1,
@@ -795,11 +795,27 @@
         "后端",
         "数据库"
       ],
-      "status": "open",
+      "status": "done",
       "created_at": "2026-06-11T15:52:40.353Z",
       "done": false,
       "completed_at": null,
       "version": null
+    },
+    {
+      "id": 51,
+      "title": "iOS 上线 TestFlight 正式分发",
+      "desc": "路线已定：CI 构建签名 IPA → 上传 TestFlight。前置(用户侧)：Apple Developer Program($99/年)+App Store Connect 建 App(com.yanmei.jiu)+三件套凭证(.p12/.mobileprovision/.p8)+7个 Forgejo secrets+TestFlight 公开链接填 version.yaml。代码缺口(我方)：compile-ios.sh 需在 flutter build ipa 前向 Release.xcconfig 注入 manual 签名(CODE_SIGN_STYLE/DEVELOPMENT_TEAM/PROVISIONING_PROFILE_SPECIFIER/CODE_SIGN_IDENTITY)，否则 archive 阶段因 Automatic 无 team 必失败。详见计划 luminous-hugging-platypus.md。暂不调度。",
+      "level": "mid",
+      "tier": 1,
+      "tags": [
+        "iOS",
+        "CI/CD"
+      ],
+      "status": "open",
+      "created_at": "2026-06-13T15:22:29.363Z",
+      "done": false,
+      "completed_at": null,
+      "version": null
     }
   ]
 }