feat: Oracle 驱动完整化——回调体系、版本感知、驱动抽象层与测试套件

- 新增驱动抽象层 driver_adapter（go-ora/godror 双驱动切换）
- 新增 Update/Delete/Query 回调，完善 RETURNING INTO 子句
- 修复 create.go 事务悬挂行 BUG、批量 RowsAffected、主键 WHERE 注入
- 版本感知体系：分页/自增/序列默认值/BOOLEAN/32k VARCHAR2 分级能力判定
- 11g 序列+触发器自增、ON UPDATE 触发器、默认值智能转换
- 升级 go-ora v2.8.19 → v2.9.0
- 单元测试+模块测试+集成测试共 96 个，真实 Oracle 11g 全绿
- 测试 DSN 密码移除，改为 ORACLE_DSN 环境变量注入

namer_test.go

@@ -0,0 +1,111 @@
+package oracle
+
+import (
+	"testing"
+
+	"gorm.io/gorm/schema"
+)
+
+func TestConvertNameToFormat(t *testing.T) {
+	tests := []struct {
+		in   string
+		want string
+	}{
+		{"hello", "HELLO"},
+		{"Hello", "HELLO"},
+		{"TEST_USERS", "TEST_USERS"},
+		{"test_users", "TEST_USERS"},
+		{"created_at", "CREATED_AT"},
+		{"", ""},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.in, func(t *testing.T) {
+			if got := ConvertNameToFormat(tt.in); got != tt.want {
+				t.Errorf("ConvertNameToFormat(%q) = %q, want %q", tt.in, got, tt.want)
+			}
+		})
+	}
+}
+
+func newTestNamer() Namer {
+	return Namer{NamingStrategy: schema.NamingStrategy{}}
+}
+
+func TestNamerTableName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.TableName("test_users"); got != "TEST_USERS" {
+		t.Errorf("TableName() = %q, want %q", got, "TEST_USERS")
+	}
+}
+
+func TestNamerTableNameWithDBName(t *testing.T) {
+	n := newTestNamer()
+	n.DBName = "MERCHANT"
+
+	if got := n.TableName("test_users"); got != "MERCHANT.TEST_USERS" {
+		t.Errorf("TableName() with DBName = %q, want %q", got, "MERCHANT.TEST_USERS")
+	}
+}
+
+func TestNamerColumnName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.ColumnName("test_users", "created_at"); got != "CREATED_AT" {
+		t.Errorf("ColumnName() = %q, want %q", got, "CREATED_AT")
+	}
+}
+
+func TestNamerJoinTableName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.JoinTableName("order_items"); got != "ORDER_ITEMS" {
+		t.Errorf("JoinTableName() = %q, want %q", got, "ORDER_ITEMS")
+	}
+}
+
+func TestNamerRelationshipFKName(t *testing.T) {
+	n := newTestNamer()
+
+	rel := schema.Relationship{
+		Name:   "User",
+		Schema: &schema.Schema{Table: "users"},
+	}
+
+	if got := n.RelationshipFKName(rel); got != "FK_USERS_USER" {
+		t.Errorf("RelationshipFKName() = %q, want %q", got, "FK_USERS_USER")
+	}
+}
+
+func TestNamerCheckerName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.CheckerName("test_users", "phone"); got != "CHK_TEST_USERS_PHONE" {
+		t.Errorf("CheckerName() = %q, want %q", got, "CHK_TEST_USERS_PHONE")
+	}
+}
+
+func TestNamerIndexName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.IndexName("test_users", "name"); got != "IDX_TEST_USERS_NAME" {
+		t.Errorf("IndexName() = %q, want %q", got, "IDX_TEST_USERS_NAME")
+	}
+}
+
+func TestNamerSchemaName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.SchemaName("public"); got != "PUBLIC" {
+		t.Errorf("SchemaName() = %q, want %q", got, "PUBLIC")
+	}
+}
+
+func TestNamerUniqueName(t *testing.T) {
+	n := newTestNamer()
+
+	if got := n.UniqueName("test_users", "email"); got != "UNI_TEST_USERS_EMAIL" {
+		t.Errorf("UniqueName() = %q, want %q", got, "UNI_TEST_USERS_EMAIL")
+	}
+}