feat(app): add character location tracking and display

frontend/src/components/RegionMap.tsx

@@ -8,7 +8,7 @@ import { loadWormholeSystems, saveWormholeSystem, deleteWormholeSystem } from '@
 import { System, Position, Connection as ConnectionType } from '@/lib/types';
 import { getSecurityColor } from '@/utils/securityColors';
 import { Header } from './Header';
-import { ListCharacters, StartESILogin, SetDestinationForAll, PostRouteForAllByNames } from 'wailsjs/go/main/App';
+import { ListCharacters, StartESILogin, SetDestinationForAll, PostRouteForAllByNames, GetCharacterLocations } from 'wailsjs/go/main/App';
 import { toast } from '@/hooks/use-toast';
 import { getSystemsRegions } from '@/utils/systemApi';
 
@@ -97,6 +97,7 @@ export const RegionMap = ({ regionName, focusSystem, isCompact = false, isWormho
   type OffIndicator = { from: string; toRegion: string; count: number; color: string; angle: number; sampleTo?: string };
   const [offRegionIndicators, setOffRegionIndicators] = useState<OffIndicator[]>([]);
   const [meanInboundAngle, setMeanInboundAngle] = useState<Record<string, number>>({});
+  const [charLocs, setCharLocs] = useState<Array<{ character_id: number; character_name: string; solar_system_name: string }>>([]);
 
   useEffect(() => {
     const onKeyDown = async (e: KeyboardEvent) => {
@@ -154,6 +155,24 @@ export const RegionMap = ({ regionName, focusSystem, isCompact = false, isWormho
     setMeanInboundAngle(angleMap);
   }, [systems]);
 
+  // Poll character locations every 7s and store those in this region
+  useEffect(() => {
+    let timer: any;
+    const tick = async () => {
+      try {
+        const locs = await GetCharacterLocations();
+        const here = locs.filter(l => !!l.solar_system_name && systems.has(l.solar_system_name));
+        setCharLocs(here.map(l => ({ character_id: l.character_id, character_name: l.character_name, solar_system_name: l.solar_system_name })));
+      } catch (_) {
+        // ignore
+      } finally {
+        timer = setTimeout(tick, 7000);
+      }
+    };
+    tick();
+    return () => { if (timer) clearTimeout(timer); };
+  }, [systems]);
+
   // Compute off-region indicators: dedupe per (from, toRegion), compute avg color, and angle via universe centroids
   useEffect(() => {
     const computeOffRegion = async () => {
@@ -644,6 +663,19 @@ export const RegionMap = ({ regionName, focusSystem, isCompact = false, isWormho
           />
         ))}
 
+        {/* Character location markers */}
+        {charLocs.map((c, idx) => {
+          const pos = positions[c.solar_system_name];
+          if (!pos) return null;
+          const yoff = -18 - (idx % 3) * 10; // stagger small vertical offsets if multiple in same system
+          return (
+            <g key={`char-${c.character_id}-${idx}`} transform={`translate(${pos.x}, ${pos.y + yoff})`}>
+              <circle r={4} fill="#00d1ff" stroke="#ffffff" strokeWidth={1} />
+              <text x={6} y={3} fontSize={8} fill="#ffffff">{c.character_name}</text>
+            </g>
+          );
+        })}
+
         {/* Off-region indicators: labeled arrows pointing toward the destination region */}
         {offRegionIndicators.map((ind, idx) => {
           const pos = positions[ind.from];