feat: add miner detail view

backend/app/locations/service.py

@@ -14,6 +14,7 @@ from app.locations.models import (
     MineMapData,
     MineMapMeta,
     MineMapResponse,
+    MinerLocationDetail,
 )
 from app.locations.repository import LocationMapRepository
 
@@ -87,6 +88,12 @@ class LocationMapService:
             ),
         )
 
+    def get_miner_location(self, miner_id: UUID) -> MinerLocationDetail | None:
+        row = self.repository.get_miner_location(miner_id)
+        if row is None:
+            return None
+        return MinerLocationDetail.model_validate(row)
+
     def summarize_locations(self, *, include_miner_counts: bool) -> LocationSummary:
         return LocationSummary.model_validate(
             self.repository.summarize_locations(