feat: 初始化 Wails + React + Go 桌面应用模板

- Wails v2.16.0 + React 19 + TypeScript + Vite 7
- 插件系统（build tag 控制编译，plugin.json 运行时配置）
- 支付插件（授权、账号、订单、退款、账单）
- 高并发基础设施（任务池、批量处理器、限流器、环形缓冲、管道）
- Windows 系统托盘（Win32 API）
- CodeGraph 索引 + .memory 记忆包
- 默认图标 assets/icon.png

internal/tray/win/tray.go

@@ -0,0 +1,167 @@
+// Package tray Windows 系统托盘实现（使用 win32 API）
+package tray
+
+import (
+	"log"
+	"sync"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+// Hook 托盘图标句柄
+var hook windows.Handle
+
+// MenuHandle 菜单句柄
+type MenuHandle uintptr
+
+// Tray 系统托盘管理器
+type Tray struct {
+	mu       sync.Mutex
+	visible  bool
+	callback uintptr // WNDPROC 回调
+	hWnd     windows.Handle
+}
+
+// MenuItem 菜单项
+type MenuItem struct {
+	ID   uint32
+	Text string
+}
+
+// NewTray 创建系统托盘
+func NewTray(iconData []byte, tooltip string) *Tray {
+	t := &Tray{}
+	if err := t.init(iconData, tooltip); err != nil {
+		log.Printf("[tray] init failed: %v", err)
+		return nil
+	}
+	return t
+}
+
+func (t *Tray) init(iconData []byte, tooltip string) error {
+	// 获取当前进程窗口
+	hWnd, _ := windows.GetForegroundWindow()
+	if hWnd == 0 {
+		return windows.ERROR_ACCESS_DENIED
+	}
+	t.hWnd = hWnd
+
+	// 注册托盘图标
+	// NOTIFYICONDATA structure
+	// https://docs.microsoft.com/en-us/windows/win32/api/shellapi/ns-shellapi-notifyicondataa
+	data := &notifyIconData{
+		CbSize:      uint32(unsafe.Sizeof(notifyIconData{})),
+		HWnd:        uint32(hWnd),
+		UID:         1000,
+		UFlags:      NIF_MESSAGE | NIF_ICON | NIF_TIP,
+		UCallbackMessage: WM_USER + 1000,
+		HIcon:       0, // 使用默认图标
+	}
+
+	// 设置 tooltip
+	for i := 0; i < len(tooltip) && i < 128; i++ {
+		data.Tip[i] = uint8(tooltip[i])
+	}
+	data.Tip[len(tooltip)] = 0
+
+	// 添加托盘图标
+	ret, _, _ := procShellNotifyIcon.Call(
+		SHM_ADD,
+		uintptr(unsafe.Pointer(data)),
+	)
+	if ret == 0 {
+		return windows.GetLastError()
+	}
+
+	t.visible = true
+	return nil
+}
+
+// Destroy 销毁托盘图标
+func (t *Tray) Destroy() {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if !t.visible {
+		return
+	}
+	data := &notifyIconData{
+		CbSize: uint32(unsafe.Sizeof(notifyIconData{})),
+		HWnd:   uint32(t.hWnd),
+		UID:    1000,
+		UFlags: NIF_MESSAGE,
+	}
+	procShellNotifyIcon.Call(SHM_DELETE, uintptr(unsafe.Pointer(data)))
+	t.visible = false
+}
+
+// Show 显示托盘
+func (t *Tray) Show(iconData []byte, tooltip string) error {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if t.visible {
+		return nil
+	}
+	return t.init(iconData, tooltip)
+}
+
+// Hide 隐藏托盘
+func (t *Tray) Hide() {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if !t.visible {
+		return
+	}
+	data := &notifyIconData{
+		CbSize: uint32(unsafe.Sizeof(notifyIconData{})),
+		HWnd:   uint32(t.hWnd),
+		UID:    1000,
+		UFlags: NIF_MESSAGE,
+	}
+	procShellNotifyIcon.Call(SHM_DELETE, uintptr(unsafe.Pointer(data)))
+	t.visible = false
+}
+
+// IsVisible 是否可见
+func (t *Tray) IsVisible() bool {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	return t.visible
+}
+
+// ─────────────────────────────────────────────
+// Win32 API 定义
+// ─────────────────────────────────────────────
+
+const (
+	WM_USER            = 0x0400
+	SHM_ADD  uintptr   = 0x00000000
+	SHM_DELETE uintptr   = 0x00000001
+
+	NIF_MESSAGE = 0x00000001
+	NIF_ICON    = 0x00000002
+	NIF_TIP     = 0x00000004
+)
+
+// NOTIFYICONDATA struct
+type notifyIconData struct {
+	CbSize           uint32
+	HWnd             uint32
+	UID              uint32
+	UFlags           uint32
+	UCallbackMessage uint32
+	HIcon            uintptr
+	Tip              [128]uint8
+}
+
+var (
+	procShellNotifyIcon = mustLoad("shell32.dll").MustFindProc("Shell_NotifyIconA")
+)
+
+func mustLoad(dllName string) *windows.DynLib {
+	dll, err := windows.LoadDLL(dllName)
+	if err != nil {
+		log.Fatalf("[tray] failed to load %s: %v", dllName, err)
+	}
+	return dll
+}