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

Add foreground-only GPS distance tracking for hunts

server/api/hunt/[huntId]/index.get.ts

@@ -25,6 +25,8 @@ export default defineEventHandler(async (event) => {
       description_en: true,
       revealAnswers: true,
       revealQuests: true,
+      virtual: true,
+      trackDistance: true,
       picture: {
         select: {
           url: true
@@ -79,6 +81,14 @@ export default defineEventHandler(async (event) => {
           ]
         }
       },
+      userTracks: {
+        select: {
+          distanceMeters: true
+        },
+        where: {
+          userId
+        }
+      },
       quests: {
         select: {
           id: true,
@@ -182,10 +192,14 @@ export default defineEventHandler(async (event) => {
   if (!_hunt) {
     throw createError({ status: 404, statusText: 'Not found!' });
   }
-  const { teams, members, quests, ...hunt } = _hunt;
+  const { teams, members, quests, userTracks, ...hunt } = _hunt;
 
   const isMember = hunt.creator.id === userId || members.length > 0;
   const ownTeam = teams.length > 0 ? teams[0] : null;
+  const ownDistance =
+    hunt.trackDistance && isMember
+      ? (userTracks[0]?.distanceMeters ?? 0)
+      : undefined;
 
   const mappedQuests = quests.map(({ answers, _count, ...q }) => ({
     ...q,
@@ -203,6 +217,7 @@ export default defineEventHandler(async (event) => {
     ownTeam,
     loggedIn: !!user.user,
     totalScore: ownTeam !== null ? totalScore : undefined,
+    ownDistance,
     quests: hunt.revealQuests || isMember ? mappedQuests : null,
     ...hunt
   };