fix: resolve all remaining audit failures across rust, svelte, and java

launcher/src/components/ChunkMap.svelte

@@ -22,6 +22,8 @@
     onunclaim?: (claimId: number) => void;
   } = $props();
 
+  let servers = $state<Array<{ id: number; name: string; instance_id: string }>>([]);
+  let serverId = $state<number | null>(null);
   let dimension = $state<'minecraft:overworld' | 'minecraft:the_nether' | 'minecraft:the_end'>('minecraft:overworld');
   let centerX = $state(0);
   let centerZ = $state(0);
@@ -39,11 +41,14 @@
   ] as const;
 
   async function loadClaims() {
-    if (!instanceId) return;
+    if (!instanceId || !serverId) { claims = []; return; }
     loading = true;
     try {
       claims = await invoke<GuildClaim[]>('get_guild_claims', {
         instanceId,
+        serverId,
+        centerX,
+        centerZ,
         dimension
       });
     } catch (e: any) {
@@ -66,11 +71,13 @@
   );
 
   async function handleClaim() {
-    if (!selectedChunk || !myGuildId) return;
+    if (!selectedChunk || !myGuildId || !serverId) return;
     claiming = true;
     try {
       const claim = await invoke<GuildClaim>('claim_guild_chunk', {
+        guildId: myGuildId,
         instanceId,
+        serverId,
         dimension,
         chunkX: selectedChunk.x,
         chunkZ: selectedChunk.z
@@ -112,17 +119,28 @@
   }
 
   $effect(() => {
-    if (instanceId && dimension) {
+    if (instanceId && dimension && serverId) {
       loadClaims();
     }
   });
 
-  onMount(() => {
-    loadClaims();
+  onMount(async () => {
+    const result = await invoke<{ servers: typeof servers }>('get_public_servers');
+    servers = result.servers;
+  });
+  $effect(() => {
+    const available = servers.filter(s => s.instance_id === instanceId);
+    if (!available.some(s => s.id === serverId)) serverId = available[0]?.id ?? null;
   });
 </script>
 
 <div class="chunk-map-container glass">
+  <label>Game server
+    <select bind:value={serverId}>
+      {#each servers.filter(s => s.instance_id === instanceId) as server}<option value={server.id}>{server.name}</option>{/each}
+    </select>
+  </label>
+  {#if !serverId}<p>Link a game server to this instance in the panel before claiming territory.</p>{/if}
   <!-- Controls Bar -->
   <div class="map-controls">
     <div class="dim-selector">