feat: common code group management (separate table + CRUD)

src/mocks/handler.ts

@@ -328,11 +328,35 @@ export function setupMocks(instance: AxiosInstance) {
     return [200, { success: true, message: 'OK', data: result }];
   });
 
+  // Shared group store derived from codes
+  const getGroups = () => [...new Set(s.commonCodes.map((c: any) => c.groupCode))];
+
   mock.onGet('/common-codes/groups').reply(() => {
-    const groups = [...new Set(s.commonCodes.map((c: any) => c.groupCode))];
+    const groupCodes = getGroups();
+    const groups = groupCodes.map((gc: string, i: number) => ({
+      id: i + 1,
+      groupCode: gc,
+      groupName: gc.replace(/_/g, ' ').toLowerCase().replace(/\b\w/g, (c: string) => c.toUpperCase()),
+      description: `${gc} management`,
+      sortOrder: i + 1,
+    }));
     return [200, { success: true, message: 'OK', data: groups }];
   });
 
+  mock.onPost('/common-codes/groups').reply((config) => {
+    const body = JSON.parse(config.data);
+    return [200, { success: true, message: '그룹 생성 완료', data: { id: Date.now(), ...body } }];
+  });
+
+  mock.onPut(/\/common-codes\/groups\/.+/).reply((config) => {
+    const body = JSON.parse(config.data);
+    return [200, { success: true, message: '그룹 수정 완료', data: { ...JSON.parse(config.data), groupCode: config.url?.split('/').pop() } }];
+  });
+
+  mock.onDelete(/\/common-codes\/groups\/.+/).reply((config) => {
+    return [200, { success: true, message: '그룹 삭제 완료', data: null }];
+  });
+
   mock.onPost('/common-codes').reply((config) => {
     const body = JSON.parse(config.data);
     const newCode = { codeId: Date.now(), ...body };