refactor: pecah lib/api.ts dan constants/Styles.ts per domain

- lib/api.ts (879 baris) → 13 file di lib/api/ per domain
- constants/Styles.ts (1.275 baris) → 10 file di constants/styles/ per domain
- tambah docs/FILE-HEALTH.md dan referensinya ke CLAUDE.md
- kedua file lama tetap sebagai re-export — zero breaking changes

lib/api/user.api.ts

@@ -0,0 +1,42 @@
+import api from './client';
+
+export const apiGetProfile = async ({ id }: { id: string }) => {
+   const response = await api.get(`mobile/user/${id}`);
+   return response.data;
+};
+
+export const apiEditProfile = async (data: FormData) => {
+   const response = await api.put(`/mobile/user/profile`, data, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+   })
+   return response.data;
+};
+
+export const apiGetUser = async ({ user, active, search, group, page }: { user: string, active: string, search: string, group?: string, page?: number }) => {
+   const response = await api.get(`mobile/user?user=${user}&active=${active}&group=${group}&search=${search}&page=${page}`);
+   return response.data;
+};
+
+export const apiCreateUser = async ({ data }: { data: FormData }) => {
+   const response = await api.post('/mobile/user', data, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+   })
+   return response.data;
+};
+
+export const apiDeleteUser = async (data: { user: string, isActive: boolean }, id: string) => {
+   const response = await api.delete(`mobile/user/${id}`, { data })
+   return response.data
+};
+
+export const apiToggleApprover = async (data: { user: string, isApprover: boolean }, id: string) => {
+   const response = await api.patch(`mobile/user/${id}`, data)
+   return response.data
+};
+
+export const apiEditUser = async (data: FormData, id: string) => {
+   const response = await api.put(`/mobile/user/${id}`, data, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+   })
+   return response.data;
+};