test(sql): route SchemaComplianceFixture.Dispose through the hardened TryDropDatabase — one drop-DDL shape per file (final-review carryover)

tests/Core/ZB.MOM.WW.OtOpcUa.Configuration.Tests/SchemaComplianceFixture.cs

@@ -73,23 +73,19 @@ public sealed class SchemaComplianceFixture : IDisposable
         return SqlTestDatabaseReaper.ReapOrphans(master, TestDatabasePrefix, DateTime.UtcNow - OrphanAge).Count;
     }
 
-    /// <summary>Disposes the fixture and drops the test database.</summary>
+    /// <summary>
+    ///     Disposes the fixture and drops the test database — via the same parameterized
+    ///     <see cref="SqlTestDatabaseReaper.TryDropDatabase"/> the reaper uses, so this file carries
+    ///     exactly one drop-DDL shape. Best-effort like the AdminUI fixture's teardown: the name is
+    ///     self-minted so a swallowed failure only leaks a database the startup reaper reclaims
+    ///     within 24 h.
+    /// </summary>
     public void Dispose()
     {
         var masterConnection =
             new SqlConnectionStringBuilder(ConnectionString) { InitialCatalog = "master" }.ConnectionString;
 
-        using var conn = new SqlConnection(masterConnection);
+        SqlTestDatabaseReaper.TryDropDatabase(masterConnection, DatabaseName);
-        conn.Open();
-
-        using var cmd = conn.CreateCommand();
-        cmd.CommandText = $@"
-IF DB_ID(N'{DatabaseName}') IS NOT NULL
-BEGIN
-    ALTER DATABASE [{DatabaseName}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
-    DROP DATABASE [{DatabaseName}];
-END";
-        cmd.ExecuteNonQuery();
     }
 }