AMOS 跑道温度范围：城市决策卡头部展示"跑道实况 14.6~15.2℃"

后端：
- amos_station_sources.py 新增 runway_temp_range (跑道温度 min,max)
- 取所有有效跑道温度的最小值和最大值

前端：
- CityCardHeader 新增 observedLabel prop（标签自定义）
- 有 AMOS 数据时显示"跑道实况"替代"当前温度"
- 温度展示格式：14.6~15.2℃（跑道温度范围）
- 无 AMOS 时回退原有 METAR 温度显示

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

@@ -388,8 +388,11 @@ export function AiPinnedCityCard({
     decisionExpectedHighNumber != null
       ? formatTemperatureValue(decisionExpectedHighNumber, tempSymbol, { digits: 1 })
       : "--";
-  const currentTempText =
-    currentTempNumber != null
+  const amosRange = detail?.amos?.runway_temp_range;
+  const observedLabel = amosRange ? (isEn ? "Runway" : "跑道实况") : undefined;
+  const currentTempText = amosRange
+    ? `${amosRange[0].toFixed(1)}~${amosRange[1].toFixed(1)}${tempSymbol}`
+    : currentTempNumber != null
       ? formatTemperatureValue(currentTempNumber, tempSymbol, { digits: 1 })
       : "--";
   const debText =
@@ -597,6 +600,7 @@ export function AiPinnedCityCard({
             collapseId={collapseId}
             collapsed={collapsed}
             currentTempText={currentTempText}
+            observedLabel={observedLabel}
             dataFreshnessRows={dataFreshnessRows}
             debText={debText}
             detailLocalTime={detail?.local_time}

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

@@ -18,6 +18,7 @@ export function CityCardHeader({
   collapseId,
   collapsed,
   currentTempText,
+  observedLabel,
   dataFreshnessRows,
   debText,
   detailLocalTime,
@@ -40,6 +41,7 @@ export function CityCardHeader({
   collapseId: string;
   collapsed: boolean;
   currentTempText: string;
+  observedLabel?: string;
   dataFreshnessRows: DataFreshnessRow[];
   debText: string;
   detailLocalTime?: string | null;
@@ -76,7 +78,7 @@ export function CityCardHeader({
       <div className="scan-ai-city-hero-side">
         <div className="scan-ai-city-metrics">
           <span>
-            <small>{isEn ? "Observed" : "当前温度"}</small>
+            <small>{observedLabel || (isEn ? "Observed" : "当前温度")}</small>
             <b>{currentTempText}</b>
           </span>
           <span className="primary">

frontend/lib/dashboard-types.ts

@@ -923,6 +923,7 @@ export interface AmosData {
   wind_kt?: number | null;
   temp_source?: string | null;
   runway_temps?: Array<[number | null, number | null]> | null;
+  runway_temp_range?: [number, number] | null;
   source?: string | null;
   source_label?: string | null;
   icao?: string | null;

src/data_collection/amos_station_sources.py

@@ -490,6 +490,7 @@ class AmosStationSourceMixin:
                 "wind_kt": wind_kt,
                 "temp_source": temp_source,
                 "runway_temps": runway_temps,
+                "runway_temp_range": None,
                 "source": "amos",
                 "source_label": f"AMOS {airport_meta['label_en']} ({icao})",
                 "source_code": "amos",
@@ -508,6 +509,13 @@ class AmosStationSourceMixin:
                 "observation_time": datetime.now().strftime("%Y-%m-%dT%H:%M:%S"),
             }
 
+            # Compute runway temp range for compact display ("14.6~15.2")
+            valid = [t[0] for t in runway_temps if t[0] is not None and -50 < float(t[0]) < 60]
+            if len(valid) >= 2:
+                result["runway_temp_range"] = (round(min(valid), 1), round(max(valid), 1))
+            elif len(valid) == 1:
+                result["runway_temp_range"] = (round(valid[0], 1), round(valid[0], 1))
+
             record_source_call(
                 "amos", "current", "success",
                 (time.perf_counter() - started) * 1000.0,