feat: implement Telegram push utility and temperature threshold visualization components

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

@@ -61,9 +61,9 @@ export async function runTests() {
     "selected city chart should consume SSE patches and use a 2-minute no-patch fallback",
   );
   assert(
-    chartSource.includes("fetchHourlyForecastForCity(city, { ignoreCache: true })") &&
+    chartSource.includes("fetchHourlyForecastForCity(city, { ignoreCache: true, resolution: targetResolution })") &&
       chartSource.includes("setHourly(data)"),
-    "visible chart fallback must refresh the full city detail payload when SSE patches stop",
+    "visible chart fallback must refresh the full city detail payload at the current chart resolution when SSE patches stop",
   );
   assert(
     __shouldPollLiveChartForTest({ city: "shanghai", compact: true, isActive: false, isMaximized: false }) === true,

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

@@ -154,6 +154,10 @@ export function runTests() {
   );
   assert(chart.includes("viewMode"), "temperature chart must expose a view mode for DEB-peak auto view versus full-day view");
   assert(chart.includes('useState<"auto" | "full">("full")'), "temperature chart must default every city panel to the all-day view");
+  assert(
+    chart.includes('setViewMode("full")') && !chart.includes('setViewMode("auto")'),
+    "temperature chart must reset city changes to the all-day view instead of silently switching back to the DEB peak window",
+  );
   assert(chart.includes("getDebPeakWindowRange"), "temperature chart must still derive the optional Peak view from the DEB peak window");
   assert(
     chart.includes('isEn ? "Peak" : "高温"') && chart.includes('isEn ? "All Day" : "全天"'),
@@ -168,6 +172,10 @@ export function runTests() {
     chart.includes("targetResolution !== nextTargetResolution"),
     "temperature chart must guard target-resolution state updates to prevent render/update loops",
   );
+  assert(
+    chart.includes("prefersHighFrequencyRunwayResolution") && chart.includes('return "1m";'),
+    "runway charts must request 1-minute detail resolution so historical runway lines match live SSE patch cadence",
+  );
   assert(!chartCanvas.includes("ResponsiveContainer"), "temperature chart canvas must not mount Recharts through ResponsiveContainer at 0x0");
   assert(chartCanvas.includes("ResizeObserver"), "temperature chart canvas must measure its host with ResizeObserver");
   assert(
@@ -178,6 +186,10 @@ export function runTests() {
     chartCanvas.includes("width={chartWidth}") && chartCanvas.includes("height={chartHeight}"),
     "temperature chart canvas must pass explicit positive width/height to Recharts",
   );
+  assert(
+    chartCanvas.includes("canToggleRunwayDetails") && chartCanvas.includes("individualRunwaySeriesCount > 1"),
+    "single-runway charts must not show the runway-detail toggle because aggregate and individual views are visually redundant",
+  );
   assert(!chart.includes("3D"), "temperature chart UI must not expose a 3D/future-forecast mode");
   assert(!chart.includes("build3DayChartData"), "temperature chart component must not render future prediction curves");
   assert(