frontend: createServer moved to useServer

frontend/app/composables/useServers.ts

@@ -24,10 +24,37 @@ export function useServers() {
     return result
   }
 
+  async function createServer(hostname: string, description: string, owner_id: number | null) {
+    const payload = {
+                hostname: hostname,
+                description: description,
+                owner_id: owner_id
+            }
+    loading.value = true
+    error.value = ""
+
+    const result = await apiFetch("/servers", {
+      method: "POST",
+      body: payload
+    })
+
+    if (isUnauthorized(result)) {
+      loading.value = false
+      return result
+    }
+
+    // Optional: direkt in die Liste einfügen
+    servers.value.push(result)
+
+    loading.value = false
+    return result
+  }
+
   return {
     servers,
     loading,
     error,
-    loadServers
+    loadServers,
+    createServer
   }
 }