test bugs fixed

src/api/insights.ts

@@ -95,8 +95,26 @@ export const insightsApi = {
   revenueSummary: (tenantid: number, range: DateRange = {}) =>
     api.get<OrderSummary>(`${WEB}/orders/getrevenuesummary`, { tenantid, ...range }),
 
-  timeSeries: (tenantid: number, range: DateRange = {}) =>
-    api.get<Record<string, unknown>[]>(`${WEB}/orders/gettimeseries`, { tenantid, ...range }),
+  /**
+   * `granularity` is REQUIRED and was never sent, so this call answered 400
+   * every single time: "granularity query parameter is required (day, month,
+   * year)". Nothing renders it yet, which is the only reason it went unnoticed
+   * — the first screen to use it would have shown an error instead of a chart.
+   *
+   * Defaulted rather than made a required argument: a day-by-day series is what
+   * every caller of a dated range wants, and a parameter with one sensible
+   * answer should not be every caller's problem.
+   */
+  timeSeries: (
+    tenantid: number,
+    range: DateRange = {},
+    granularity: 'day' | 'month' | 'year' = 'day',
+  ) =>
+    api.get<Record<string, unknown>[]>(`${WEB}/orders/gettimeseries`, {
+      tenantid,
+      granularity,
+      ...range,
+    }),
 
   deliverySummary: (tenantid: number, range: DateRange = {}) =>
     api.get<DeliverySummary>(`${WEB}/deliveries/deliverysummary`, { tenantid, ...range }),