🐛 fix(connection): 修复 IRIS 连接类型保存后回退为 MySQL

- 将 IRIS 纳入前端连接类型白名单与默认端口配置

- 补齐常见数据源类型别名归一化，避免未知别名回退为 MySQL

- 增加 IRIS 连接保存、导入、自动 Limit 和表数据清空回归测试

- 补齐前后端 IRIS truncate 支持

Refs #476

frontend/src/components/tableDataDangerActions.test.ts

@@ -8,8 +8,10 @@ describe('tableDataDangerActions', () => {
     expect(supportsTableTruncateAction('oceanbase')).toBe(true);
     expect(supportsTableTruncateAction('postgres')).toBe(true);
     expect(supportsTableTruncateAction('opengauss')).toBe(true);
+    expect(supportsTableTruncateAction('iris')).toBe(true);
     expect(supportsTableTruncateAction('custom', 'postgresql')).toBe(true);
     expect(supportsTableTruncateAction('custom', 'kingbase8')).toBe(true);
+    expect(supportsTableTruncateAction('custom', 'intersystemsiris')).toBe(true);
   });
 
   it('rejects truncate for unsupported or document-style backends', () => {

frontend/src/components/tableDataDangerActions.ts

@@ -41,6 +41,8 @@ const resolveCustomDriverDialect = (driver: string): string => {
     case 'iris':
     case 'intersystems':
     case 'intersystemsiris':
+    case 'inter-systems':
+    case 'inter-systems-iris':
       return 'iris';
     default:
       break;
@@ -53,6 +55,7 @@ const resolveCustomDriverDialect = (driver: string): string => {
   if (normalized.includes('highgo')) return 'highgo';
   if (normalized.includes('vastbase')) return 'vastbase';
   if (normalized.includes('sqlite')) return 'sqlite';
+  if (normalized.includes('iris') || normalized.includes('intersystems')) return 'iris';
   if (normalized.includes('sphinx')) return 'sphinx';
   if (normalized.includes('diros') || normalized.includes('doris')) return 'diros';
   if (normalized.includes('starrocks')) return 'starrocks';
@@ -79,6 +82,7 @@ export const supportsTableTruncateAction = (type: string, driver?: string): bool
     case 'vastbase':
     case 'opengauss':
     case 'sqlserver':
+    case 'iris':
     case 'oracle':
     case 'dameng':
     case 'clickhouse':