feat(charge-points): add pricing mode for charge points with validation

feat(pricing): implement tariff management with peak, valley, and flat pricing
feat(api): add tariff API for fetching and updating pricing configurations
feat(tariff-schema): create database schema for tariff configuration
feat(pricing-page): create UI for displaying and managing pricing tiers
fix(sidebar): update sidebar to include pricing settings link

apps/web/lib/api.ts

@@ -77,6 +77,7 @@ export type ChargePoint = {
   lastHeartbeatAt: string | null;
   lastBootNotificationAt: string | null;
   feePerKwh: number;
+  pricingMode: "fixed" | "tou";
   connectors: ConnectorSummary[];
   chargePointStatus: string | null;
   chargePointErrorCode: string | null;
@@ -98,6 +99,7 @@ export type ChargePointDetail = {
   lastHeartbeatAt: string | null;
   lastBootNotificationAt: string | null;
   feePerKwh: number;
+  pricingMode: "fixed" | "tou";
   createdAt: string;
   updatedAt: string;
   connectors: ConnectorDetail[];
@@ -121,6 +123,8 @@ export type Transaction = {
   stopIdTag: string | null;
   stopReason: string | null;
   chargeAmount: number | null;
+  electricityFee: number | null;
+  serviceFee: number | null;
 };
 
 export type IdTag = {
@@ -154,6 +158,29 @@ export type PaginatedTransactions = {
   totalPages: number;
 };
 
+export type PriceTier = "peak" | "valley" | "flat";
+
+export type TariffSlot = {
+  start: number;
+  end: number;
+  tier: PriceTier;
+};
+
+export type TierPricing = {
+  /** 电价（元/kWh） */
+  electricityPrice: number;
+  /** 服务费（元/kWh） */
+  serviceFee: number;
+};
+
+export type TariffConfig = {
+  id?: string;
+  slots: TariffSlot[];
+  prices: Record<PriceTier, TierPricing>;
+  createdAt?: string;
+  updatedAt?: string;
+};
+
 // ── API functions ──────────────────────────────────────────────────────────
 
 export type ChartRange = "30d" | "7d" | "24h";
@@ -181,6 +208,7 @@ export const api = {
       chargePointModel?: string;
       registrationStatus?: "Accepted" | "Pending" | "Rejected";
       feePerKwh?: number;
+      pricingMode?: "fixed" | "tou";
     }) =>
       apiFetch<ChargePoint>("/api/charge-points", {
         method: "POST",
@@ -190,6 +218,7 @@ export const api = {
       id: string,
       data: {
         feePerKwh?: number;
+        pricingMode?: "fixed" | "tou";
         registrationStatus?: "Accepted" | "Pending" | "Rejected";
         chargePointVendor?: string;
         chargePointModel?: string;
@@ -287,4 +316,9 @@ export const api = {
     create: (data: { name: string; email: string; username: string; password: string }) =>
       apiFetch<{ success: boolean }>("/api/setup", { method: "POST", body: JSON.stringify(data) }),
   },
+  tariff: {
+    get: () => apiFetch<TariffConfig | null>("/api/tariff"),
+    put: (data: { slots: TariffSlot[]; prices: Record<PriceTier, TierPricing> }) =>
+      apiFetch<TariffConfig>("/api/tariff", { method: "PUT", body: JSON.stringify(data) }),
+  },
 };