refactor(windows): use utils/winapi for console hiding

Move ShowWindow / GetConsoleWindow proc declarations into utils/winapi
to follow the existing centralization convention (see review feedback).
Adds a User32 LazyDLL handle and a typed HideConsoleWindow() wrapper.

main_windows.go is now a thin caller that uses the wrapper.

Author: moonD4rk

cmd/hack-browser-data/main_windows.go

@@ -5,16 +5,8 @@ package main
 import (
 	"github.com/inconshreveable/mousetrap"
 	"github.com/spf13/cobra"
-	"golang.org/x/sys/windows"
-)
-
-const swHide = 0
 
-var (
-	kernel32             = windows.NewLazySystemDLL("kernel32.dll")
-	user32               = windows.NewLazySystemDLL("user32.dll")
-	procGetConsoleWindow = kernel32.NewProc("GetConsoleWindow")
-	procShowWindow       = user32.NewProc("ShowWindow")
+	"github.com/moond4rk/hackbrowserdata/utils/winapi"
 )
 
 // configureDoubleClickMode hides the console and bypasses cobra's
@@ -25,9 +17,5 @@ func configureDoubleClickMode() {
 	}
 
 	cobra.MousetrapHelpText = ""
-
-	hwnd, _, _ := procGetConsoleWindow.Call()
-	if hwnd != 0 {
-		_, _, _ = procShowWindow.Call(hwnd, swHide)
-	}
+	winapi.HideConsoleWindow()
 }

utils/winapi/console_windows.go

@@ -0,0 +1,21 @@
+//go:build windows
+
+package winapi
+
+var (
+	procGetConsoleWindow = Kernel32.NewProc("GetConsoleWindow")
+	procShowWindow       = User32.NewProc("ShowWindow")
+)
+
+const swHide = 0
+
+// HideConsoleWindow hides the console window attached to the current
+// process. Used when the binary is launched via Explorer double-click
+// so no cmd window appears.
+func HideConsoleWindow() {
+	hwnd, _, _ := procGetConsoleWindow.Call()
+	if hwnd == 0 {
+		return
+	}
+	_, _, _ = procShowWindow.Call(hwnd, swHide)
+}

utils/winapi/winapi_windows.go

@@ -24,6 +24,7 @@ var (
 	Kernel32 = windows.NewLazySystemDLL("kernel32.dll")
 	Ntdll    = windows.NewLazySystemDLL("ntdll.dll")
 	Crypt32  = windows.NewLazySystemDLL("crypt32.dll")
+	User32   = windows.NewLazySystemDLL("user32.dll")
 )
 
 // CallBoolErr wraps the common "r1 == 0 means failure" Win32 convention.