Integrate Vantage live map for guild claims [skip ci]

panel/web/src/components/ServerForm.svelte

@@ -18,6 +18,7 @@
 
 <label class="field">Name<input bind:value={draft.name} maxlength="48" placeholder="Survival SMP" /></label>
 <label class="field">Launcher instance<select bind:value={draft.instance_id}><option value="">Unlinked</option>{#each instances as instance}<option value={instance.id}>{instance.name}</option>{/each}</select></label>
+<label class="field">Vantage live map manifest URL<input type="url" bind:value={draft.map_url} placeholder="https://maps.example.com/world.json" /><span class="tiny muted">Optional. Use a public Vantage render or a session-gated same-origin endpoint. The URL is visible to launcher users.</span></label>
 <div class="field">
   <span class="lbl">Who can join</span>
   <div class="opts">

panel/web/src/lib/types.ts

@@ -92,6 +92,7 @@ export interface AuthServerInfo { public_url: string; yggdrasil_url: string; pub
 
 export interface GameServer {
   instance_id: string;
+  map_url: string;
   id: number;
   name: string;
   token_hint: string;
@@ -140,7 +141,7 @@ export interface ServerDetail {
 
 export interface UserActivity { servers: PlayerStats[]; events: ServerEvent[]; online_on: { id: number; name: string }[] }
 
-export type ServerDraft = { instance_id?: string; name: string; access: 'all' | 'members' | 'groups'; allowed_groups: string[]; require_launcher: boolean };
+export type ServerDraft = { instance_id?: string; name: string; map_url?: string; access: 'all' | 'members' | 'groups'; allowed_groups: string[]; require_launcher: boolean };
 
 export interface HostedDownload {
   platform: 'windows' | 'mac' | 'linux';

panel/web/src/pages/ServerDetail.svelte

@@ -78,7 +78,7 @@
 
   function openEdit() {
     if (!s) return;
-    draft = { instance_id: s.instance_id, name: s.name, access: s.access, allowed_groups: [...s.allowed_groups], require_launcher: s.require_launcher };
+    draft = { instance_id: s.instance_id, name: s.name, map_url: s.map_url, access: s.access, allowed_groups: [...s.allowed_groups], require_launcher: s.require_launcher };
     editOpen = true;
   }
   async function saveEdit() {