Slim terminal chart detail batches

frontend/components/dashboard/scan-terminal/__tests__/refreshCadencePolicy.test.ts

@@ -119,6 +119,11 @@ export async function runTests() {
       chartLogicSource.includes("primeCityDetailCache"),
     "visible terminal chart detail fetches should be coalesced into one batch request and prime the shared chart cache",
   );
+  assert(
+    chartLogicSource.includes('scope: "chart"') &&
+      chartLogicSource.includes("params.toString()"),
+    "terminal chart detail batches should request the slim chart scope instead of the full city detail payload",
+  );
   assert(
     chartLogicSource.includes("CITY_DETAIL_BATCH_WINDOW_MS = 100"),
     "visible terminal chart detail fetches should use a wide enough batch window to coalesce cards mounted across adjacent frames",

frontend/components/dashboard/scan-terminal/temperature-chart-logic.ts

@@ -1179,6 +1179,7 @@ function fetchCityDetailBatchWithTimeout(cities: string[], resolution: string) {
     force_refresh: "false",
     limit: String(Math.max(cities.length, CITY_DETAIL_BATCH_MAX_CITIES)),
     resolution,
+    scope: "chart",
   });
   return fetch(`/api/cities/detail-batch?${params.toString()}`, {
     headers: { Accept: "application/json" },