first commit

backend/F9WebAiTest.Infrastructure/FreeSqls/Repositories/F9RepositoryBase.cs

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+using FreeSql;
+using F9WebAiTest.Infrastructure.FreeSqls.Persistence;
+
+namespace F9WebAiTest.Infrastructure.FreeSqls.Repositories;
+
+/// <summary>F9 风格仓储基类：提供事务感知的 Orm（事务内用事务 Orm，事务外用外部 Orm）</summary>
+public abstract class F9RepositoryBase
+{
+    protected readonly IFreeSql _fsql;
+
+    protected F9RepositoryBase(IFreeSql fsql) => _fsql = fsql;
+
+    /// <summary>事务感知的 Orm</summary>
+    protected IFreeSql Orm => UnitOfWork_F9.CurrentOrm ?? _fsql;
+}