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/combridge/iunknown_impl.go

@@ -0,0 +1,74 @@
+//go:build windows
+
+package combridge
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+// IUnknownFromPointer cast a generic pointer into a IUnknownImpl pointer
+func IUnknownFromPointer(ref unsafe.Pointer) *IUnknownImpl {
+	return (*IUnknownImpl)(ref)
+}
+
+// IUnknownFromPointer cast native pointer into a IUnknownImpl pointer
+func IUnknownFromUintptr(ref uintptr) *IUnknownImpl {
+	return IUnknownFromPointer(unsafe.Pointer(ref))
+}
+
+type IUnknownVtbl struct {
+	queryInterface uintptr
+	addRef         uintptr
+	release        uintptr
+}
+
+func (i *IUnknownVtbl) QueryInterface(this unsafe.Pointer, refiid *windows.GUID, ppvObject **IUnknownImpl) error {
+	r, _, _ := syscall.SyscallN(
+		i.queryInterface,
+		uintptr(this),
+		uintptr(unsafe.Pointer(refiid)),
+		uintptr(unsafe.Pointer(ppvObject)),
+	)
+
+	if r != uintptr(windows.S_OK) {
+		return syscall.Errno(r)
+	}
+
+	return nil
+}
+
+func (i *IUnknownVtbl) AddRef(this unsafe.Pointer) uint32 {
+	r, _, _ := syscall.SyscallN(
+		i.addRef,
+		uintptr(this),
+	)
+	return uint32(r)
+}
+
+func (i *IUnknownVtbl) Release(this unsafe.Pointer) uint32 {
+	r, _, _ := syscall.SyscallN(
+		i.release,
+		uintptr(this),
+	)
+
+	return uint32(r)
+}
+
+type IUnknownImpl struct {
+	vtbl *IUnknownVtbl
+}
+
+func (i *IUnknownImpl) QueryInterface(refiid *windows.GUID, ppvObject **IUnknownImpl) error {
+	return i.vtbl.QueryInterface(unsafe.Pointer(i), refiid, ppvObject)
+}
+
+func (i *IUnknownImpl) AddRef() uint32 {
+	return i.vtbl.AddRef(unsafe.Pointer(i))
+}
+
+func (i *IUnknownImpl) Release() uint32 {
+	return i.vtbl.Release(unsafe.Pointer(i))
+}