feat(market): add selectable chart ranges (24h/7d/30d/1y/all) with range-aware API caching and downsampling

lib/market.ts

@@ -1,5 +1,8 @@
 import { z } from "zod";
 
+export const MARKET_CHART_RANGES = ["24h", "7d", "30d", "1y", "all"] as const;
+export type MarketChartRange = (typeof MARKET_CHART_RANGES)[number];
+
 export interface CryptoMarketResponse {
   code: string;
   name: string;
@@ -7,7 +10,8 @@ export interface CryptoMarketResponse {
   change24hPct: number | null;
   marketCapUsd: number | null;
   volume24hUsd: number | null;
-  priceHistory24h: Array<{
+  priceHistoryRange: MarketChartRange;
+  priceHistory: Array<{
     timestamp: string;
     priceUsd: number;
   }>;
@@ -15,26 +19,38 @@ export interface CryptoMarketResponse {
   source: string;
 }
 
-const marketResponseSchema = z.object({
-  code: z.string(),
-  name: z.string(),
+const pointSchema = z.object({
+  timestamp: z.string(),
   priceUsd: z.number().positive(),
-  change24hPct: z.number().nullable(),
-  marketCapUsd: z.number().nullable(),
-  volume24hUsd: z.number().nullable(),
-  priceHistory24h: z
-    .array(
-      z.object({
-        timestamp: z.string(),
-        priceUsd: z.number().positive(),
-      }),
-    )
-    .optional()
-    .default([]),
-  updatedAt: z.string(),
-  source: z.string(),
 });
 
+const marketResponseSchema = z
+  .object({
+    code: z.string(),
+    name: z.string(),
+    priceUsd: z.number().positive(),
+    change24hPct: z.number().nullable(),
+    marketCapUsd: z.number().nullable(),
+    volume24hUsd: z.number().nullable(),
+    priceHistoryRange: z.enum(MARKET_CHART_RANGES),
+    priceHistory: z.array(pointSchema).optional(),
+    priceHistory24h: z.array(pointSchema).optional(),
+    updatedAt: z.string(),
+    source: z.string(),
+  })
+  .transform((value) => ({
+    code: value.code,
+    name: value.name,
+    priceUsd: value.priceUsd,
+    change24hPct: value.change24hPct,
+    marketCapUsd: value.marketCapUsd,
+    volume24hUsd: value.volume24hUsd,
+    priceHistoryRange: value.priceHistoryRange,
+    priceHistory: value.priceHistory ?? value.priceHistory24h ?? [],
+    updatedAt: value.updatedAt,
+    source: value.source,
+  }));
+
 export function parseCryptoMarketResponse(
   payload: unknown,
 ): CryptoMarketResponse {