Switch remote deploy to vendored source builds

Move remote deployment to a vendored source bundle built on the target host via Docker so redeploys no longer require local cross-compilation or host Go installation.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

vendor/github.com/wailsapp/go-webview2/pkg/edge/com.go

@@ -0,0 +1,80 @@
+//go:build windows
+
+package edge
+
+import (
+	"golang.org/x/sys/windows"
+	"unsafe"
+)
+
+type EventRegistrationToken struct {
+	value int64
+}
+
+// IUnknown
+type IUnknown struct {
+	Vtbl *IUnknownVtbl
+}
+
+type IUnknownVtbl struct {
+	QueryInterface ComProc
+	AddRef         ComProc
+	Release        ComProc
+}
+
+func (i *IUnknownVtbl) CallRelease(this unsafe.Pointer) uint32 {
+	ret, _, _ := i.Release.Call(
+		uintptr(this),
+	)
+
+	return uint32(ret)
+}
+
+type IUnknownImpl interface {
+	QueryInterface(refiid, object uintptr) uintptr
+	AddRef() uintptr
+	Release() uintptr
+}
+
+type POINT struct {
+	X, Y int32
+}
+type RECT struct {
+	Left   int32
+	Top    int32
+	Right  int32
+	Bottom int32
+}
+type HANDLE uintptr
+type HBRUSH uintptr
+type HCURSOR uintptr
+type HICON uintptr
+type HINSTANCE uintptr
+type HMENU uintptr
+type HMODULE uintptr
+type HWND uintptr
+
+// NOTE: For sure, this is wrong!
+type VARIANT uintptr
+
+type IDataObject struct {
+	IUnknown
+}
+
+func ptr[T any](p T) *T {
+	return &p
+}
+
+const ERROR_SUCCESS = windows.ERROR_SUCCESS
+
+func UTF16PtrFromString(s string) (*uint16, error) {
+	return windows.UTF16PtrFromString(s)
+}
+
+func UTF16PtrToString(s *uint16) string {
+	return windows.UTF16PtrToString(s)
+}
+
+func CoTaskMemFree(pv unsafe.Pointer) {
+	windows.CoTaskMemFree(pv)
+}