feat(hunt): track walking distance via GPS, show live locations on map

Add foreground-only GPS distance tracking for hunts

server/api/auth/profile.get.ts

@@ -3,7 +3,7 @@ import prisma from '~~/lib/prisma';
 export default defineEventHandler(async (event) => {
   const user = await requireUserSession(event);
 
-  return prisma.user.findUnique({
+  const profile = await prisma.user.findUnique({
     where: { id: user.user.id },
     select: {
       name: true,
@@ -38,7 +38,44 @@ export default defineEventHandler(async (event) => {
             answerId: null
           }
         }
+      },
+      userTracks: {
+        select: {
+          distanceMeters: true,
+          hunt: {
+            select: {
+              id: true,
+              name_de: true,
+              name_en: true
+            }
+          }
+        },
+        where: {
+          hunt: {
+            deletedAt: null
+          }
+        }
       }
     }
   });
+
+  if (!profile) {
+    throw createError({ status: 404, statusText: 'Not found!' });
+  }
+
+  const { userTracks, ...rest } = profile;
+
+  const distances = userTracks.map((track) => ({
+    huntId: track.hunt.id,
+    huntName_de: track.hunt.name_de,
+    huntName_en: track.hunt.name_en,
+    distanceMeters: track.distanceMeters
+  }));
+
+  const totalDistance = distances.reduce(
+    (sum, entry) => sum + entry.distanceMeters,
+    0
+  );
+
+  return { ...rest, distances, totalDistance };
 });