Reduce duplicate scan terminal decision copy and chrome

Removed the scan KPI bar, trimmed redundant decision-card content, and shortened the primary reason text so the city analysis cards read like concise signals instead of repeating the same state across sections.

Constraint: Keep existing city decision logic and data flow unchanged while simplifying the UI
Rejected: Rework the full card layout or mobile card flow | larger surface area than requested
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep hero, decision band, and market line responsibilities separate to avoid duplicate copy returning
Tested: frontend npm run build
Not-tested: Manual visual QA in browser across desktop/mobile breakpoints

frontend/components/dashboard/ScanTerminalDashboard.tsx

@@ -52,7 +52,6 @@ import type {
 } from "@/lib/dashboard-types";
 import { AiPinnedForecastView } from "@/components/dashboard/scan-terminal/AiPinnedForecastView";
 import { CalendarView } from "@/components/dashboard/scan-terminal/CalendarView";
-import { AiForecastKPIBar } from "@/components/dashboard/scan-terminal/AiForecastKPIBar";
 import { LoadingSignal } from "@/components/dashboard/scan-terminal/LoadingSignal";
 import { findDetailForCity } from "@/components/dashboard/scan-terminal/city-detail-utils";
 import {
@@ -190,19 +189,6 @@ function ScanTerminalScreen() {
       mapSelectedCityName || store.selectedCity,
     );
   }, [mapSelectedCityName, store.selectedCity, timeSortedRows]);
-  const kpiCityName =
-    mapSelectedCityName ||
-    store.selectedCity ||
-    aiPinnedCities[0]?.cityName ||
-    null;
-  const kpiDetail =
-    findDetailForCity(store.cityDetailsByName, kpiCityName) ||
-    (store.selectedDetail &&
-    normalizeCityKey(store.selectedDetail.name) === normalizeCityKey(kpiCityName)
-      ? store.selectedDetail
-      : null);
-  const kpiRow = findRowForCity(timeSortedRows, kpiCityName);
-
   const mapFallbackRow = useMemo(() => {
     const rawCityName = mapSelectedCityName || store.selectedCity;
     const cityKey = normalizeCityKey(rawCityName);
@@ -514,14 +500,6 @@ function ScanTerminalScreen() {
             </div>
           </div>
 
-          <AiForecastKPIBar
-            pinnedCount={aiPinnedCities.length}
-            activeCityName={kpiCityName}
-            activeDetail={kpiDetail}
-            activeRow={kpiRow}
-            locale={locale}
-          />
-
           {showAnnouncement ? (
           <section className="scan-upgrade-announcement" aria-label={isEn ? "Upgrade announcement" : "升级公告"}>
             <div className="scan-upgrade-announcement-copy">