feat: add Settlements, SMS, User detail, and Users management pages

- Implement SettlementsPage for managing settlement requests with approval and rejection functionalities.
- Create SmsPage for handling SMS templates, including creation, approval, rejection, and logging.
- Add UserDetailPage to display detailed information about users.
- Develop UsersPage for listing users with search, view, edit, and delete options.
- Introduce new types for User, SmsTemplate, SmsLog, and Settlement to support the new features.

assets/admin/lib/api.ts

@@ -0,0 +1,76 @@
+const BASE_URL = '';
+
+function getToken(): string | null {
+  try {
+    const raw = localStorage.getItem('clinicpro-auth');
+    if (!raw) return null;
+    const parsed = JSON.parse(raw);
+    return parsed?.state?.token ?? null;
+  } catch {
+    return null;
+  }
+}
+
+export class ApiError extends Error {
+  constructor(
+    public status: number,
+    public code: string,
+    message: string,
+  ) {
+    super(message);
+  }
+}
+
+async function request<T>(
+  path: string,
+  options: RequestInit = {},
+): Promise<T> {
+  const token = getToken();
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+    ...(options.headers as Record<string, string>),
+  };
+  if (token) headers['Authorization'] = `Bearer ${token}`;
+
+  const res = await fetch(`${BASE_URL}${path}`, { ...options, headers });
+
+  if (!res.ok) {
+    const body = await res.json().catch(() => ({}));
+    const firstErr = body?.errors?.[0];
+    throw new ApiError(
+      res.status,
+      firstErr?.code ?? 'ERR_UNKNOWN',
+      firstErr?.message ?? 'خطای ناشناخته',
+    );
+  }
+
+  return res.json() as Promise<T>;
+}
+
+export const api = {
+  get: <T>(path: string) => request<T>(path),
+  post: <T>(path: string, body: unknown) =>
+    request<T>(path, { method: 'POST', body: JSON.stringify(body) }),
+  patch: <T>(path: string, body: unknown) =>
+    request<T>(path, { method: 'PATCH', body: JSON.stringify(body) }),
+  put: <T>(path: string, body: unknown) =>
+    request<T>(path, { method: 'PUT', body: JSON.stringify(body) }),
+  delete: <T>(path: string) => request<T>(path, { method: 'DELETE' }),
+};
+
+export interface ApiResponse<T> {
+  success: boolean;
+  data: T;
+  errors: { code: string; message: string; field?: string }[];
+}
+
+export interface PaginatedResponse<T> {
+  success: boolean;
+  data: {
+    items: T[];
+    total: number;
+    page: number;
+    limit: number;
+  };
+  errors: [];
+}