fix: prevent hover update loop and map style ready guard

apps/web/src/pages/dashboard/DashboardPage.tsx

@@ -4,6 +4,7 @@ import { Map3DSettingsToggles } from "../../features/map3dSettings/Map3DSettings
 import type { MapToggleState } from "../../features/mapToggles/MapToggles";
 import { MapToggles } from "../../features/mapToggles/MapToggles";
 import { TypeFilterGrid } from "../../features/typeFilter/TypeFilterGrid";
+import type { DerivedLegacyVessel } from "../../features/legacyDashboard/model/types";
 import { useLegacyVessels } from "../../entities/legacyVessel/api/useLegacyVessels";
 import { buildLegacyVesselIndex } from "../../entities/legacyVessel/lib";
 import type { LegacyVesselIndex } from "../../entities/legacyVessel/lib";
@@ -87,6 +88,11 @@ export function DashboardPage() {
   });
 
   const [selectedMmsi, setSelectedMmsi] = useState<number | null>(null);
+  const [highlightedMmsiSet, setHighlightedMmsiSet] = useState<number[]>([]);
+  const [hoveredMmsiSet, setHoveredMmsiSet] = useState<number[]>([]);
+  const [hoveredFleetMmsiSet, setHoveredFleetMmsiSet] = useState<number[]>([]);
+  const [hoveredPairMmsiSet, setHoveredPairMmsiSet] = useState<number[]>([]);
+  const [hoveredFleetOwnerKey, setHoveredFleetOwnerKey] = useState<string | null>(null);
   const [typeEnabled, setTypeEnabled] = useState<Record<VesselTypeCode, boolean>>({
     PT: true,
     "PT-S": true,
@@ -109,6 +115,8 @@ export function DashboardPage() {
     fleetCircles: true,
   });
 
+  const [fleetFocus, setFleetFocus] = useState<{ id: string | number; center: [number, number]; zoom?: number } | undefined>(undefined);
+
   const [settings, setSettings] = useState<Map3DSettings>({
     showShips: true,
     showDensity: false,
@@ -192,6 +200,52 @@ export function DashboardPage() {
     return legacyHits.get(selectedMmsi) ?? null;
   }, [selectedMmsi, legacyHits]);
 
+  const availableTargetMmsiSet = useMemo(
+    () => new Set(targetsInScope.map((t) => t.mmsi).filter((mmsi) => Number.isFinite(mmsi))),
+    [targetsInScope],
+  );
+  const activeHighlightedMmsiSet = useMemo(
+    () => highlightedMmsiSet.filter((mmsi) => availableTargetMmsiSet.has(mmsi)),
+    [highlightedMmsiSet, availableTargetMmsiSet],
+  );
+
+  const setUniqueSorted = (items: number[]) =>
+    Array.from(new Set(items.filter((item) => Number.isFinite(item)))).sort((a, b) => a - b);
+
+  const setSortedIfChanged = (next: number[]) => {
+    const sorted = setUniqueSorted(next);
+    return (prev: number[]) => (prev.length === sorted.length && prev.every((v, i) => v === sorted[i]) ? prev : sorted);
+  };
+
+  const handleFleetContextMenu = (ownerKey: string, mmsis: number[]) => {
+    if (!mmsis.length) return;
+    const members = mmsis
+      .map((mmsi) => legacyVesselsFiltered.find((v): v is DerivedLegacyVessel => v.mmsi === mmsi))
+      .filter(
+        (v): v is DerivedLegacyVessel & { lat: number; lon: number } =>
+          v != null && typeof v.lat === "number" && typeof v.lon === "number" && Number.isFinite(v.lat) && Number.isFinite(v.lon),
+      );
+
+    if (members.length === 0) return;
+    const sumLon = members.reduce((acc, v) => acc + v.lon, 0);
+    const sumLat = members.reduce((acc, v) => acc + v.lat, 0);
+    const center: [number, number] = [sumLon / members.length, sumLat / members.length];
+    setFleetFocus({
+      id: `${ownerKey}-${Date.now()}`,
+      center,
+      zoom: 9,
+    });
+  };
+
+  const toggleHighlightedMmsi = (mmsi: number) => {
+    setHighlightedMmsiSet((prev) => {
+      const next = new Set(prev);
+      if (next.has(mmsi)) next.delete(mmsi);
+      else next.add(mmsi);
+      return Array.from(next).sort((a, b) => a - b);
+    });
+  };
+
   const fishingCount = legacyVesselsAll.filter((v) => v.state.isFishing).length;
   const transitCount = legacyVesselsAll.filter((v) => v.state.isTransit).length;
 
@@ -304,6 +358,22 @@ export function DashboardPage() {
             vessels={legacyVesselsAll}
             fleetVessels={legacyVesselsFiltered}
               onSelectMmsi={setSelectedMmsi}
+              onToggleHighlightMmsi={toggleHighlightedMmsi}
+              onHoverMmsi={(mmsis) => setHoveredMmsiSet(setUniqueSorted(mmsis))}
+              onClearHover={() => setHoveredMmsiSet([])}
+              onHoverPair={(pairMmsis) => setHoveredPairMmsiSet(setUniqueSorted(pairMmsis))}
+              onClearPairHover={() => setHoveredPairMmsiSet([])}
+              onHoverFleet={(ownerKey, fleetMmsis) => {
+                setHoveredFleetOwnerKey(ownerKey);
+                setHoveredFleetMmsiSet(setSortedIfChanged(fleetMmsis));
+              }}
+              onClearFleetHover={() => {
+                setHoveredFleetOwnerKey(null);
+                setHoveredFleetMmsiSet((prev) => (prev.length === 0 ? prev : []));
+              }}
+              hoveredFleetOwnerKey={hoveredFleetOwnerKey}
+              hoveredFleetMmsiSet={hoveredFleetMmsiSet}
+              onContextMenuFleet={handleFleetContextMenu}
             />
           </div>
         </div>
@@ -315,7 +385,15 @@ export function DashboardPage() {
               ({legacyVesselsFiltered.length}척)
             </span>
           </div>
-          <VesselList vessels={legacyVesselsFiltered} selectedMmsi={selectedMmsi} onSelectMmsi={setSelectedMmsi} />
+          <VesselList
+            vessels={legacyVesselsFiltered}
+            selectedMmsi={selectedMmsi}
+            highlightedMmsiSet={activeHighlightedMmsiSet}
+            onSelectMmsi={setSelectedMmsi}
+            onToggleHighlightMmsi={toggleHighlightedMmsi}
+            onHoverMmsi={(mmsi) => setHoveredMmsiSet([mmsi])}
+            onClearHover={() => setHoveredMmsiSet([])}
+          />
         </div>
 
         <div className="sb" style={{ maxHeight: 130, overflowY: "auto" }}>
@@ -489,17 +567,32 @@ export function DashboardPage() {
           targets={targetsForMap}
           zones={zones}
           selectedMmsi={selectedMmsi}
+          highlightedMmsiSet={activeHighlightedMmsiSet}
+          hoveredMmsiSet={hoveredMmsiSet}
+          hoveredFleetMmsiSet={hoveredFleetMmsiSet}
+          hoveredPairMmsiSet={hoveredPairMmsiSet}
+          hoveredFleetOwnerKey={hoveredFleetOwnerKey}
           settings={settings}
           baseMap={baseMap}
           projection={projection}
           overlays={overlays}
           onSelectMmsi={setSelectedMmsi}
+          onToggleHighlightMmsi={toggleHighlightedMmsi}
           onViewBboxChange={setViewBbox}
           legacyHits={legacyHits}
           pairLinks={pairLinksForMap}
           fcLinks={fcLinksForMap}
           fleetCircles={fleetCirclesForMap}
+          fleetFocus={fleetFocus}
           onProjectionLoadingChange={setIsProjectionLoading}
+          onHoverFleet={(ownerKey, fleetMmsis) => {
+            setHoveredFleetOwnerKey(ownerKey);
+            setHoveredFleetMmsiSet(setSortedIfChanged(fleetMmsis));
+          }}
+          onClearFleetHover={() => {
+            setHoveredFleetOwnerKey(null);
+            setHoveredFleetMmsiSet((prev) => (prev.length === 0 ? prev : []));
+          }}
         />
         <MapLegend />
         {selectedLegacyVessel ? (