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frontend/app/api/city/[name]/detail/route.ts

@@ -24,11 +24,15 @@ export async function GET(
 
   const { name } = await context.params;
   const forceRefresh = req.nextUrl.searchParams.get("force_refresh") ?? "false";
+  const depth = req.nextUrl.searchParams.get("depth");
   const marketSlug = req.nextUrl.searchParams.get("market_slug");
   const targetDate = req.nextUrl.searchParams.get("target_date");
   const searchParams = new URLSearchParams({
     force_refresh: forceRefresh,
   });
+  if (depth) {
+    searchParams.set("depth", depth);
+  }
   if (marketSlug) {
     searchParams.set("market_slug", marketSlug);
   }

frontend/components/dashboard/scan-terminal/city-detail-utils.ts

@@ -37,6 +37,15 @@ export function countDetailForecastDays(detail?: CityDetail | null) {
 export function isFullEnoughForDeepAnalysis(detail?: CityDetail | null) {
   if (!detail) return false;
   if (detail.detail_depth && detail.detail_depth !== "full") return false;
+  const hourlyTimes = Array.isArray(detail.hourly?.times)
+    ? detail.hourly?.times || []
+    : [];
+  const hourlyTemps = Array.isArray(detail.hourly?.temps)
+    ? detail.hourly?.temps || []
+    : [];
+  if (!detail.local_time || hourlyTimes.length === 0 || hourlyTemps.length === 0) {
+    return false;
+  }
   return (
     countDetailModels(detail, detail.local_date) > 1 &&
     countDetailForecastDays(detail) > 1

frontend/components/dashboard/scan-terminal/scan-terminal-client.ts

@@ -49,6 +49,7 @@ type TerminalQueryOptions = {
 };
 
 type CityDetailQueryOptions = {
+  depth?: "panel" | "market" | "nearby" | "full";
   forceRefresh?: boolean;
   marketSlug?: string | null;
   signal?: AbortSignal;
@@ -273,6 +274,7 @@ async function getTerminal({
 
 async function getCityDetail(city: string, options: CityDetailQueryOptions = {}) {
   const params = new URLSearchParams({
+    depth: options.depth || "full",
     force_refresh: String(options.forceRefresh ?? false),
   });
   if (options.marketSlug) params.set("market_slug", options.marketSlug);

frontend/lib/chart-utils.ts

@@ -135,7 +135,7 @@ function buildCalibratedFuturePath({
   currentMinutes: number | null;
   reversionMinutes?: number | null;
 }) {
-  if (currentMinutes == null || !times.length || !observations.length) {
+  if (!times.length || !observations.length) {
     return {
       adjustmentDelta: null as number | null,
       future: new Array(times.length).fill(null) as Array<number | null>,
@@ -151,15 +151,21 @@ function buildCalibratedFuturePath({
     },
     null,
   );
+  if (latestObservationMinute == null && currentMinutes == null) {
+    return {
+      adjustmentDelta: null as number | null,
+      future: new Array(times.length).fill(null) as Array<number | null>,
+    };
+  }
   // In practice the backend `local_time` can lag the latest METAR/official
   // observation by one refresh cycle. Anchor the future line to the newest
   // observation when it is newer, otherwise the "no future obs" guard can
   // suppress the calibrated path even though the user already sees a fresh
   // green observation point on the chart.
   const pathStartMinutes =
-    latestObservationMinute != null
-      ? Math.max(currentMinutes, latestObservationMinute)
-      : currentMinutes;
+    latestObservationMinute == null || currentMinutes == null
+      ? latestObservationMinute ?? currentMinutes ?? 0
+      : Math.max(currentMinutes, latestObservationMinute);
 
   const deltas = normalizedObservations
     .map((item) => {