fix(maps): localize map POI pin titles to the user's language

client/src/api/client.ts

@@ -885,8 +885,8 @@ export const mapsApi = {
   // OSM-only POI explore: places of a category within the current map viewport bbox.
   // Overpass can be slow on a fresh (uncached) area, so this call gets a longer
   // timeout than the global default instead of aborting at 8s and showing nothing.
-  pois: (category: string, bbox: { south: number; west: number; north: number; east: number }, signal?: AbortSignal) =>
-    apiClient.get('/maps/pois', { params: { category, ...bbox }, signal, timeout: 20000 }).then(r => r.data as { pois: import('../components/Map/poiCategories').Poi[]; source: string; truncated: boolean; clamped?: boolean }),
+  pois: (category: string, bbox: { south: number; west: number; north: number; east: number }, lang?: string, signal?: AbortSignal) =>
+    apiClient.get('/maps/pois', { params: { category, ...bbox, lang }, signal, timeout: 20000 }).then(r => r.data as { pois: import('../components/Map/poiCategories').Poi[]; source: string; truncated: boolean; clamped?: boolean }),
 }
 
 export const airportsApi = {

client/src/components/Map/usePoiExplore.ts

@@ -1,5 +1,6 @@
 import { useState, useRef, useCallback, useMemo } from 'react'
 import { mapsApi } from '../../api/client'
+import { useTranslation } from '../../i18n'
 import type { Poi } from './poiCategories'
 
 export interface Bbox { south: number; west: number; north: number; east: number }
@@ -17,6 +18,7 @@ function isAbortError(err: unknown): boolean {
  * Overpass load (and visual churn) down.
  */
 export function usePoiExplore() {
+  const { locale } = useTranslation()
   const [active, setActive] = useState<Set<string>>(() => new Set())
   const [byCat, setByCat] = useState<Record<string, Poi[]>>({})
   const [loadingKeys, setLoadingKeys] = useState<Set<string>>(() => new Set())
@@ -54,7 +56,7 @@ export function usePoiExplore() {
     setLoading(key, true)
     setError(key, false)
     try {
-      const res = await mapsApi.pois(key, bbox, ctrl.signal)
+      const res = await mapsApi.pois(key, bbox, locale, ctrl.signal)
       // Drop the result if the user toggled this category off while the (slow)
       // Overpass request was in flight — otherwise stale results re-appear.
       setByCat(prev => (activeRef.current.has(key) ? { ...prev, [key]: res.pois } : prev))
@@ -74,7 +76,7 @@ export function usePoiExplore() {
         delete abortRef.current[key]
       }
     }
-  }, [setLoading, setError])
+  }, [setLoading, setError, locale])
 
   const onViewportChange = useCallback((bbox: Bbox) => {
     bboxRef.current = bbox