[优化] 重构数据库迁移逻辑，添加版本管理和验证功能

openflare_server/model/migrate/migration_test.go

@@ -0,0 +1,23 @@
+package migrate
+
+import "testing"
+
+func TestMigrationsAreContinuousFromBaseVersion(t *testing.T) {
+	migrations := Migrations()
+	if len(migrations) == 0 {
+		t.Fatal("expected at least one registered migration")
+	}
+	expectedFrom := BaseDatabaseSchemaVersion
+	for _, migration := range migrations {
+		if migration.FromVersion != expectedFrom {
+			t.Fatalf("expected migration from v%d, got v%d -> v%d", expectedFrom, migration.FromVersion, migration.ToVersion)
+		}
+		if migration.ToVersion != migration.FromVersion+1 {
+			t.Fatalf("expected one-step migration, got v%d -> v%d", migration.FromVersion, migration.ToVersion)
+		}
+		expectedFrom = migration.ToVersion
+	}
+	if CurrentVersion() != expectedFrom {
+		t.Fatalf("unexpected current version: got %d want %d", CurrentVersion(), expectedFrom)
+	}
+}