feat: 规范化PocketBase数据库文档与原生API访问

- 将数据库文档拆分为按collection命名的标准文件，统一格式
- 补充tbl_company、tbl_system_dict等表的原生访问规则
- 新增users_tag、document_create等字段
- 优化用户资料更新接口，支持非必填字段
- 添加公司原生API测试脚本
- 归档本次变更至OpenSpec

script/package.json

@@ -8,7 +8,8 @@
     "init:newpb": "node pocketbase.newpb.js",
     "init:documents": "node pocketbase.documents.js",
     "init:dictionary": "node pocketbase.dictionary.js",
-    "migrate:file-fields": "node pocketbase.file-fields-to-attachments.js"
+    "migrate:file-fields": "node pocketbase.file-fields-to-attachments.js",
+    "test:company-native-api": "node test-tbl-company-native-api.js"
   },
   "keywords": [],
   "author": "",