feat: replace desktop membership with permanent point wallet

shared/works-billing.ts

@@ -0,0 +1,56 @@
+export type WorksTokenPointBalance = {
+  total: string | null;
+  used: string | null;
+  reserved: string | null;
+  total_remaining: string | null;
+  entitlement_source: 'self' | 'family_owner' | 'shared_group';
+  family_shared: boolean;
+  can_recharge: boolean;
+  shared_available: boolean | null;
+  expires_at: null;
+};
+
+export type WorksRechargeProduct = {
+  id: string;
+  name: string;
+  amount_cents: number;
+  point_amount: string;
+  currency: 'CNY';
+};
+
+export type WorksBillingSummary = {
+  own_points: WorksTokenPointBalance;
+  points: WorksTokenPointBalance | null;
+  funding_error: string | null;
+  recharge_products: WorksRechargeProduct[];
+  points_per_yuan: 50;
+  signup_bonus: string;
+  can_recharge: boolean;
+  payment_configured: boolean;
+};
+
+export type WorksRechargeOrder = {
+  id: string;
+  product_id: string;
+  product_name: string;
+  status: 'pending' | 'succeeded' | 'failed' | 'canceled' | 'manual_review';
+  amount_cents: number;
+  point_amount: string;
+  currency: 'CNY';
+  created_at: string;
+  paid_at: string | null;
+  manual_review_required: boolean;
+  qr_payload: string | null;
+};
+
+export type WorksPointTransaction = {
+  id: string;
+  kind: 'credit' | 'usage';
+  description: string;
+  status: string;
+  points: string;
+  reserved_points: string;
+  created_at: string;
+};
+
+export type WorksPointHistory = { items: WorksPointTransaction[]; has_more: boolean };