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/app/dashboard/pricing/page.tsx

@@ -0,0 +1,233 @@
+"use client";
+
+import { useQuery } from "@tanstack/react-query";
+import { Spinner } from "@heroui/react";
+import { TagDollar, ChartLine } from "@gravity-ui/icons";
+import { api, type PriceTier, type TariffConfig, type TariffSlot } from "@/lib/api";
+
+// ── Tier meta (matches admin pricing editor colors) ───────────────────────────
+
+const TIER_META: Record<
+  PriceTier,
+  { label: string; sublabel: string; cellBg: string; text: string; border: string; dot: string }
+> = {
+  peak: {
+    label: "峰时",
+    sublabel: "高峰时段",
+    cellBg: "bg-orange-500/70",
+    text: "text-orange-500",
+    border: "border-orange-500/40",
+    dot: "bg-orange-500",
+  },
+  flat: {
+    label: "平时",
+    sublabel: "肩峰时段",
+    cellBg: "bg-neutral-400/45",
+    text: "text-neutral-400",
+    border: "border-neutral-400/40",
+    dot: "bg-neutral-400",
+  },
+  valley: {
+    label: "谷时",
+    sublabel: "低谷时段",
+    cellBg: "bg-blue-500/65",
+    text: "text-blue-500",
+    border: "border-blue-500/40",
+    dot: "bg-blue-500",
+  },
+};
+
+// ── Slot cards ────────────────────────────────────────────────────────────────
+
+function SlotCards({ tariff }: { tariff: TariffConfig }) {
+  const sorted = [...tariff.slots].sort((a, b) => a.start - b.start);
+  return (
+    <div className="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
+      {sorted.map((slot: TariffSlot, i) => {
+        const meta = TIER_META[slot.tier];
+        const p = tariff.prices[slot.tier];
+        const total = p.electricityPrice + p.serviceFee;
+        return (
+          <div key={i} className={`rounded-xl border bg-surface p-4 space-y-3 ${meta.border}`}>
+            {/* Header */}
+            <div className="flex items-center justify-between">
+              <div className="flex items-center gap-2">
+                <span className={`size-2.5 rounded-sm ${meta.cellBg}`} />
+                <span className={`text-sm font-semibold ${meta.text}`}>{meta.label}</span>
+                <span className="text-xs text-muted">{meta.sublabel}</span>
+              </div>
+              <span className="tabular-nums text-xs font-medium text-muted">
+                {String(slot.start).padStart(2, "0")}:00 – {String(slot.end).padStart(2, "0")}:00
+              </span>
+            </div>
+            {/* Prices */}
+            <div className="divide-y divide-border rounded-lg border border-border overflow-hidden text-sm">
+              <div className="flex divide-x divide-border">
+                <div className="flex-1 flex items-center justify-between bg-surface-secondary px-3 py-2">
+                  <span className="text-muted">电费</span>
+                  <span className="tabular-nums font-medium text-foreground">
+                    ¥{p.electricityPrice.toFixed(4)}
+                    <span className="text-xs text-muted font-normal">/kWh</span>
+                  </span>
+                </div>
+                <div className="flex-1 flex items-center justify-between bg-surface-secondary px-3 py-2">
+                  <span className="text-muted">服务费</span>
+                  <span className="tabular-nums font-medium text-foreground">
+                    ¥{p.serviceFee.toFixed(4)}
+                    <span className="text-xs text-muted font-normal">/kWh</span>
+                  </span>
+                </div>
+              </div>
+              <div className="flex items-center justify-between bg-surface px-3 py-2">
+                <span className="font-semibold text-foreground">单价</span>
+                <span className={`tabular-nums font-bold ${meta.text}`}>
+                  ¥{total.toFixed(4)}
+                  <span className="text-xs font-normal">/kWh</span>
+                </span>
+              </div>
+            </div>
+          </div>
+        );
+      })}
+    </div>
+  );
+}
+
+// ── Page ─────────────────────────────────────────────────────────────────────
+
+export default function PricingPage() {
+  const {
+    data: tariff,
+    isLoading,
+    isError,
+  } = useQuery({
+    queryKey: ["tariff"],
+    queryFn: () => api.tariff.get(),
+  });
+
+  return (
+    <div className="space-y-6">
+      {/* Header */}
+      <div className="flex items-center gap-3">
+        <div className="flex size-9 items-center justify-center rounded-xl bg-accent/10">
+          <TagDollar className="size-5 text-accent" />
+        </div>
+        <div>
+          <h1 className="text-xl font-bold text-foreground">电价标准</h1>
+          <p className="text-sm text-muted">今日实行的电价标准</p>
+        </div>
+      </div>
+
+      {isLoading && (
+        <div className="flex justify-center py-20">
+          <Spinner />
+        </div>
+      )}
+
+      {isError && (
+        <div className="rounded-xl border border-danger/30 bg-danger/5 px-4 py-3 text-sm text-danger">
+          电价信息加载失败，请刷新页面重试。
+        </div>
+      )}
+
+      {!isLoading && !isError && !tariff && (
+        <div className="rounded-2xl border border-border bg-surface px-6 py-12 text-center">
+          <TagDollar className="mx-auto mb-3 size-10 text-muted" />
+          <p className="font-medium text-foreground">尚未配置峰谷电价</p>
+          <p className="mt-1 text-sm text-muted">
+            各充电桩使用独立固定电价，请查看充电桩详情页了解具体费率。
+          </p>
+        </div>
+      )}
+
+      {tariff && (
+        <>
+          {/* Timeline + legend */}
+          <div className="rounded-xl border border-border bg-surface-secondary">
+            <div className="flex items-center gap-3 border-b border-border px-5 py-4">
+              <div className="flex size-9 items-center justify-center rounded-lg bg-accent/10">
+                <ChartLine className="size-5 text-accent" />
+              </div>
+              <div>
+                <p className="text-sm font-semibold text-foreground">24 小时时段分布</p>
+                <p className="text-xs text-muted">实际扣费以交易完成时系统计算为准</p>
+              </div>
+            </div>
+
+            <div className="space-y-3 px-5 py-5">
+              {/* Tick labels */}
+              <div className="relative h-4">
+                {[0, 6, 12, 18, 24].map((h) => (
+                  <span
+                    key={h}
+                    className="absolute text-[10px] tabular-nums text-muted"
+                    style={{
+                      left: `${(h / 24) * 100}%`,
+                      transform:
+                        h === 24 ? "translateX(-100%)" : h > 0 ? "translateX(-50%)" : undefined,
+                    }}
+                  >
+                    {String(h).padStart(2, "0")}:00
+                  </span>
+                ))}
+              </div>
+
+              {/* Colored bar */}
+              <div className="flex h-12 overflow-hidden rounded-lg">
+                {(() => {
+                  const hourTier: PriceTier[] = Array(24).fill("flat" as PriceTier);
+                  for (const slot of tariff.slots) {
+                    for (let h = slot.start; h < slot.end; h++) hourTier[h] = slot.tier;
+                  }
+                  return hourTier.map((tier, h) => (
+                    <div
+                      key={h}
+                      className={`flex-1 ${TIER_META[tier].cellBg} transition-opacity hover:opacity-100 opacity-90 flex items-center justify-center`}
+                      title={`${String(h).padStart(2, "0")}:00 — ${TIER_META[tier].label}`}
+                    >
+                      <span className="hidden text-[10px] font-semibold text-white drop-shadow lg:block">
+                        {String(h).padStart(2, "0")}
+                      </span>
+                    </div>
+                  ));
+                })()}
+              </div>
+
+              {/* Legend */}
+              <div className="flex flex-wrap items-center gap-3 gap-y-1 pt-0.5">
+                {(["peak", "flat", "valley"] as PriceTier[]).map((tier) => {
+                  const meta = TIER_META[tier];
+                  const hours = tariff.slots
+                    .filter((s) => s.tier === tier)
+                    .reduce((acc, s) => acc + (s.end - s.start), 0);
+                  const total =
+                    tariff.prices[tier].electricityPrice + tariff.prices[tier].serviceFee;
+                  return (
+                    <div key={tier} className="flex items-center gap-1.5">
+                      <span className={`size-3 rounded-sm ${meta.cellBg}`} />
+                      <span className="text-xs text-muted">
+                        <span className={`font-semibold ${meta.text}`}>{meta.label}</span>
+                        <span className="ml-1 text-muted/70">
+                          {hours}h · ¥{total.toFixed(4)}/kWh
+                        </span>
+                      </span>
+                    </div>
+                  );
+                })}
+              </div>
+            </div>
+          </div>
+
+          {/* Slot cards */}
+          <div className="space-y-3">
+            <h2 className="text-sm font-semibold text-foreground">各时段费率</h2>
+            <SlotCards tariff={tariff} />
+            <p className="text-xs text-muted">
+              合计费率 = 电费 + 服务费。实际扣费以交易完成时系统计算为准。
+            </p>
+          </div>
+        </>
+      )}
+    </div>
+  );
+}