Add map summary screen (place count + Start button) before the guide

After resolving location, the map screen now checks how many places
are nearby (same server-side iterative radius expansion the guide
screen uses) and shows "Found N places within Rm" with a Start button,
instead of jumping straight into narration. The search cap is raised
to 10km (was 5km) — if nothing turns up within that, a "nothing found"
message is shown instead.

This also addresses a UX report: the guide screen's Tinder-style card
stack only shows one card at a time by design, which read as "it only
found one place" even when 5 were actually there. Added a "1 / 5"
position indicator to the card stack so it's clear there's more to
swipe through, and the new summary screen surfaces the real count
upfront regardless.

Verified: ./gradlew testDebugUnitTest passes, :app:assembleDebug
produces a working APK, sent to Telegram.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

android/app/src/main/res/values-ru/strings.xml

@@ -15,6 +15,10 @@
     <string name="map_location_permission_rationale">guideCity нужен доступ к геолокации, чтобы найти места поблизости. Вы также можете ввести место вручную.</string>
     <string name="map_grant_permission">Разрешить доступ к геолокации</string>
     <string name="map_search_placeholder">Введите место для поиска…</string>
+    <string name="map_checking_nearby">Ищем места поблизости…</string>
+    <string name="map_places_found">Найдено мест поблизости: %1$d (в радиусе %2$d м)</string>
+    <string name="map_start">Начать</string>
+    <string name="map_no_places_nearby">В радиусе 10 км ничего не нашлось.</string>
 
     <string name="guide_no_places_nearby">Поблизости пока не найдено интересных мест.</string>
     <string name="guide_retry">Повторить</string>