fix: hide probability bands on temperature chart

frontend/components/dashboard/scan-terminal/TemperatureChartCanvas.tsx

@@ -41,7 +41,7 @@ function hasDrawableTemperatureChartContent({
   probabilityOverlay: ProbabilityOverlay | null;
   zoomedData: Array<Record<string, any>>;
 }) {
-  if (probabilityOverlay?.muLine || probabilityOverlay?.bands.length) return true;
+  void probabilityOverlay;
   return activeSeries.some((series) =>
     zoomedData.some((point, index) => {
       const value = point?.[series.key] ?? series.values[index];
@@ -261,29 +261,6 @@ function TemperatureChartCanvasComponent({
           </label>
         )}
 
-        {probabilityOverlay && (
-          <span
-            className={clsx(
-              "inline-flex items-center gap-1.5 rounded border border-violet-200 bg-violet-50 px-1.5 py-0.5 text-[10px] font-bold text-violet-700",
-              canToggleRunwayDetails ? "" : "ml-auto",
-            )}
-            title={
-              probabilityOverlay.muLine
-                ? probabilityOverlay.muLine.label
-                : isEn
-                  ? "Legacy Gaussian probability bands"
-                  : "Legacy 高斯概率温度带"
-            }
-          >
-            <span className="h-2 w-2 rounded-full bg-violet-500/70" />
-            <span>{isEn ? "Gaussian" : "高斯概率"}</span>
-            {probabilityOverlay.muLine && (
-              <span className="font-mono text-violet-600">
-                μ {probabilityOverlay.muLine.value.toFixed(1)}{tempSymbol}
-              </span>
-            )}
-          </span>
-        )}
       </div>
       <div ref={chartHostRef} className={clsx("relative flex-1", compact ? "min-h-[120px]" : "min-h-[220px]")}>
         {!shouldRenderChart && <TemperatureChartSkeleton compact={compact} />}
@@ -316,16 +293,6 @@ function TemperatureChartCanvasComponent({
               domain={chartDomain}
               ticks={intDegreeTicks ?? undefined}
             />
-            {timeframe === "1D" && probabilityOverlay?.bands.map((band) => (
-              <ReferenceArea
-                key={band.key}
-                y1={band.lower}
-                y2={band.upper}
-                strokeOpacity={0}
-                fill="#8b5cf6"
-                fillOpacity={band.opacity}
-              />
-            ))}
             {timeframe === "1D" && cityThresholds.map((t, idx) => {
               const isSelected = row && (Number(row.target_threshold ?? row.target_value) === t.threshold);
               const labelText = isEn
@@ -348,20 +315,6 @@ function TemperatureChartCanvasComponent({
                 />
               );
             })}
-            {timeframe === "1D" && probabilityOverlay?.muLine && (
-              <ReferenceLine
-                y={probabilityOverlay.muLine.value}
-                stroke="#7c3aed"
-                strokeDasharray="2 3"
-                strokeWidth={1.4}
-                label={{
-                  value: compact ? undefined : probabilityOverlay.muLine.label,
-                  fill: "#7c3aed",
-                  fontSize: 9,
-                  position: "insideTopLeft",
-                }}
-              />
-            )}
             <Tooltip
               filterNull={false}
               cursor={{ stroke: "#94a3b8", strokeWidth: 1 }}
@@ -378,7 +331,7 @@ function TemperatureChartCanvasComponent({
                   payload={props.payload as ReadonlyArray<{ payload?: Record<string, any> }> | undefined}
                   data={zoomedData}
                   series={activeSeries}
-                  probabilityOverlay={probabilityOverlay}
+                  probabilityOverlay={null}
                   tempSymbol={tempSymbol}
                   isEn={isEn}
                 />

frontend/components/dashboard/scan-terminal/TemperatureTooltipContent.tsx

@@ -118,42 +118,15 @@ function buildTooltipRows(
     .filter((item): item is TooltipRow => item !== null);
 }
 
-function formatProbabilityTemp(value: number, tempSymbol: string) {
-  return `${value.toFixed(1)}${tempSymbol}`;
-}
-
 function buildTooltipProbabilityRows(
   probabilityOverlay: ProbabilityOverlay | null | undefined,
   tempSymbol: string,
   isEn: boolean,
 ): TooltipProbabilityRow[] {
-  if (!probabilityOverlay) return [];
-
-  const rows: TooltipProbabilityRow[] = [];
-  if (probabilityOverlay.muLine) {
-    rows.push({
-      key: "gaussian_mu",
-      label: isEn ? "Gaussian μ" : "高斯 μ",
-      value: formatProbabilityTemp(probabilityOverlay.muLine.value, tempSymbol),
-      color: "#7c3aed",
-    });
-  }
-
-  probabilityOverlay.bands
-    .slice()
-    .sort((left, right) => right.probability - left.probability)
-    .forEach((band) => {
-      const range = `${band.lower.toFixed(1)}-${band.upper.toFixed(1)}${tempSymbol}`;
-      const probability = `${Math.round(band.probability * 100)}%`;
-      rows.push({
-        key: band.key,
-        label: isEn ? "Probability band" : "概率温度带",
-        value: `${range} ${probability}`,
-        color: "#8b5cf6",
-      });
-    });
-
-  return rows;
+  void probabilityOverlay;
+  void tempSymbol;
+  void isEn;
+  return [];
 }
 
 export const __buildTemperatureTooltipRowsForTest = buildTooltipRows;

frontend/components/dashboard/scan-terminal/UsageGuideDashboard.tsx

@@ -38,8 +38,8 @@ const quickStart: Record<"zh" | "en", GuideCopy[]> = {
       body: "橙色 DEB Forecast 是融合模型和日内修正后的路径，用来判断后续升温或降温空间。",
     },
     {
-      title: "最后看概率",
-      body: "紫色区域和虚线表示高概率温度带，适合判断当前实测是否偏离主预期。",
+      title: "最后看图层",
+      body: "按需打开模型线或跑道明细，用来确认当前实测是否偏离 DEB 主路径。",
     },
   ],
   en: [
@@ -56,8 +56,8 @@ const quickStart: Record<"zh" | "en", GuideCopy[]> = {
       body: "The orange DEB Forecast blends model context with intraday correction to frame the remaining move.",
     },
     {
-      title: "Check probability",
-      body: "The purple band and dotted line show the high-probability temperature zone for fast deviation checks.",
+      title: "Check layers",
+      body: "Use model lines or runway details only when needed to confirm whether live observations are drifting away from the DEB path.",
     },
   ],
 };
@@ -66,7 +66,7 @@ const legendItems: Record<"zh" | "en", GuideCopy[]> = {
   zh: [
     { title: "实测 / 结算线", body: "优先展示结算跑道、官方站或城市核心实况，用于判断已兑现温度。" },
     { title: "DEB Forecast", body: "橙色预测路径，重点看它和实测线在峰值窗口前后的分歧。" },
-    { title: "高概率带", body: "紫色带表示当前概率分布的主要落点，虚线是概率均值附近。" },
+    { title: "市场概率", body: "概率仍用于市场判断和后台分析，但默认不再占用温度主图空间。" },
     { title: "机场报文", body: "METAR / MGM 作为机场站参考，默认只在适合的城市自动显示。" },
     { title: "模型线", body: "ECMWF、GFS、ICON、GEM 等提供背景，默认弱化为辅助判断。" },
     { title: "跑道明细", body: "打开后可查看各跑道传感器，关闭后仍保留结算跑道温度。" },
@@ -74,7 +74,7 @@ const legendItems: Record<"zh" | "en", GuideCopy[]> = {
   en: [
     { title: "Live / settlement", body: "Settlement runway, official station, or core live observation used as the realized anchor." },
     { title: "DEB Forecast", body: "Orange forecast path; focus on its gap versus live observations near the peak window." },
-    { title: "Probability band", body: "Purple band marks the main probability zone, with the dotted line near the probability mean." },
+    { title: "Market probability", body: "Probability remains available for market analysis, but no longer occupies the main temperature chart by default." },
     { title: "Airport reports", body: "METAR / MGM are airport references and are auto-shown only where they are useful by default." },
     { title: "Model lines", body: "ECMWF, GFS, ICON, GEM, and related model layers provide background context." },
     { title: "Runway details", body: "When disabled, the chart still keeps the settlement runway temperature visible." },
@@ -160,8 +160,8 @@ export function UsageGuideDashboard({ isEn }: { isEn: boolean }) {
               </h1>
               <p className="mt-2 max-w-3xl text-sm leading-6 text-slate-500">
                 {isEn
-                  ? "Start from live evidence, compare DEB, then use probability and layer toggles to confirm whether the city is moving away from the main path."
-                  : "先看实况锚点，再对照 DEB 路径，最后用概率带和图层显隐确认城市是否偏离主预期。"}
+                  ? "Start from live evidence, compare DEB, then use layer toggles to confirm whether the city is moving away from the main path."
+                  : "先看实况锚点，再对照 DEB 路径，最后用图层显隐确认城市是否偏离主预期。"}
               </p>
             </div>
             <div className="grid grid-cols-3 gap-2 text-center text-[11px] font-bold text-slate-600">

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

@@ -1637,7 +1637,7 @@ export function runTests() {
   const firstBand = bandPoints[0].runway_band;
   assert(Array.isArray(firstBand) && firstBand[0] === 24.0 && firstBand[1] === 26.0, "runway_band tuple values should match input limits");
 
-  // ── Legacy Gaussian probability overlay test ──
+  // ── Legacy Gaussian probability data should not render as a visible chart overlay ──
   const gaussianOverlayChart = __buildTemperatureChartDataForTest(
     {
       city: "toronto",
@@ -1665,14 +1665,7 @@ export function runTests() {
   ) as any;
 
   const gaussianOverlay = gaussianOverlayChart.probabilityOverlay;
-  assert(gaussianOverlay, "legacy Gaussian probabilities should be exposed as a chart overlay");
-  assert(gaussianOverlay.muLine?.value === 27.4, "legacy Gaussian μ should become a reference line");
-  assert(
-    gaussianOverlay.bands.some(
-      (band: any) => band.value === 27 && band.lower === 26.5 && band.upper === 27.5 && band.probability === 0.42,
-    ),
-    "legacy Gaussian buckets should become horizontal probability temperature bands",
-  );
+  assert(gaussianOverlay === null, "legacy Gaussian probabilities should not create visible chart overlays");
   assert(
     !gaussianOverlayChart.series.some((series: any) => String(series.key || "").includes("probability")),
     "legacy Gaussian probability distribution should not be rendered as a time-series line",

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

@@ -73,11 +73,7 @@ export function runTests() {
   );
 
   assert(
-    probabilityRows.some((row) => row.key === "gaussian_mu" && row.value === "27.4°C"),
-    "tooltip should expose the Gaussian μ line when the purple probability overlay is present",
-  );
-  assert(
-    probabilityRows.some((row) => row.value.includes("26.5-27.5°C") && row.value.includes("42%")),
-    "tooltip should expose purple probability-band range and probability values",
+    probabilityRows.length === 0,
+    "temperature tooltip should not show Gaussian μ or probability-band rows",
   );
 }

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

@@ -2168,7 +2168,9 @@ function buildFullDayChartData(
     return point;
   });
 
-  const probabilityOverlay = buildLegacyGaussianProbabilityOverlay(row, hourly);
+  // Keep probability data in the payload for market views, but do not draw
+  // legacy Gaussian bands on the live temperature chart.
+  const probabilityOverlay = null;
 
   return { data, series, probabilityOverlay };
 }