feat: add custom tauri title bar and window controls

src-tauri/tauri.conf.json

@@ -14,7 +14,8 @@
       {
         "title": "Orchai",
         "width": 1200,
-        "height": 800
+        "height": 800,
+        "decorations": false
       }
     ],
     "security": {

src/components/layout/AppLayout.tsx

@@ -1,15 +1,23 @@
 import { Outlet } from "react-router-dom";
 import NotificationCenter from "./NotificationCenter";
 import Sidebar from "./Sidebar";
+import WindowControls from "./WindowControls";
 
 export default function AppLayout() {
   return (
     <div className="flex h-screen">
       <Sidebar />
       <main className="flex-1 overflow-y-auto bg-gray-50">
-        <header className="sticky top-0 z-10 border-b border-gray-200 bg-gray-50/95 px-6 py-3 backdrop-blur">
-          <div className="flex justify-end">
+        <header className="sticky top-0 z-10 border-b border-gray-200 bg-gray-50/95 px-3 py-2 backdrop-blur">
+          <div className="flex items-center gap-3">
+            <div
+              data-tauri-drag-region
+              className="min-w-0 flex-1 select-none text-sm font-semibold text-gray-700"
+            >
+              Orchai
+            </div>
             <NotificationCenter />
+            <WindowControls />
           </div>
         </header>
         <Outlet />

src/components/layout/WindowControls.tsx

@@ -0,0 +1,56 @@
+import { getCurrentWindow } from "@tauri-apps/api/window";
+
+async function minimizeWindow() {
+  try {
+    await getCurrentWindow().minimize();
+  } catch {
+    // No-op outside Tauri runtime
+  }
+}
+
+async function toggleMaximizeWindow() {
+  try {
+    await getCurrentWindow().toggleMaximize();
+  } catch {
+    // No-op outside Tauri runtime
+  }
+}
+
+async function closeWindow() {
+  try {
+    await getCurrentWindow().close();
+  } catch {
+    // No-op outside Tauri runtime
+  }
+}
+
+export default function WindowControls() {
+  return (
+    <div className="flex items-center gap-1">
+      <button
+        type="button"
+        onClick={() => void minimizeWindow()}
+        title="Minimize"
+        className="h-7 w-7 rounded border border-gray-300 bg-white text-xs text-gray-700 hover:bg-gray-100"
+      >
+        _
+      </button>
+      <button
+        type="button"
+        onClick={() => void toggleMaximizeWindow()}
+        title="Maximize / Restore"
+        className="h-7 w-7 rounded border border-gray-300 bg-white text-xs text-gray-700 hover:bg-gray-100"
+      >
+        []
+      </button>
+      <button
+        type="button"
+        onClick={() => void closeWindow()}
+        title="Close"
+        className="h-7 w-7 rounded border border-red-300 bg-red-50 text-xs text-red-700 hover:bg-red-100"
+      >
+        X
+      </button>
+    </div>
+  );
+}