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.go

@@ -0,0 +1,56 @@
+//go:build windows
+
+package combridge
+
+import (
+	"golang.org/x/sys/windows"
+)
+
+const iUnknownGUID = "{00000000-0000-0000-C000-000000000046}"
+
+func init() {
+	registerVTableInternal[IUnknown, IUnknown](
+		iUnknownGUID,
+		true,
+		iUnknownQueryInterface,
+		iUnknownAddRef,
+		iUnknownRelease,
+	)
+}
+
+type IUnknown interface{}
+
+func iUnknownQueryInterface(this uintptr, refiid *windows.GUID, ppvObject *uintptr) uintptr {
+	if refiid == nil || ppvObject == nil {
+		return uintptr(windows.E_INVALIDARG)
+	}
+
+	comIfcePointersL.RLock()
+	obj := comIfcePointers[this]
+	comIfcePointersL.RUnlock()
+
+	ref := obj.queryInterface(refiid.String(), true)
+	if ref != 0 {
+		*ppvObject = ref
+		return windows.NO_ERROR
+	}
+
+	*ppvObject = 0
+	return uintptr(windows.E_NOINTERFACE)
+}
+
+func iUnknownAddRef(this uintptr) uintptr {
+	comIfcePointersL.RLock()
+	obj := comIfcePointers[this]
+	comIfcePointersL.RUnlock()
+
+	return uintptr(obj.addRef())
+}
+
+func iUnknownRelease(this uintptr) uintptr {
+	comIfcePointersL.RLock()
+	obj := comIfcePointers[this]
+	comIfcePointersL.RUnlock()
+
+	return uintptr(obj.release())
+}