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/webviewloader/env_create_completed.go

@@ -0,0 +1,42 @@
+//go:build windows && !native_webview2loader
+
+package webviewloader
+
+import (
+	"github.com/wailsapp/go-webview2/pkg/combridge"
+)
+
+// HRESULT
+//
+// See https://docs.microsoft.com/en-us/windows/win32/seccrypto/common-hresult-values
+type HRESULT int32
+
+// ICoreWebView2Environment Represents the WebView2 Environment
+//
+// See https://docs.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2environment
+type ICoreWebView2Environment = combridge.IUnknownImpl
+
+// ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler receives the WebView2Environment created using CreateCoreWebView2Environment.
+type ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler interface {
+	// EnvironmentCompleted is invoked to receive the created WebView2Environment
+	//
+	// See https://docs.microsoft.com/en-us/microsoft-edge/webview2/reference/win32/icorewebview2createcorewebview2environmentcompletedhandler?#invoke
+	EnvironmentCompleted(errorCode HRESULT, createdEnvironment *ICoreWebView2Environment) HRESULT
+}
+
+type iCoreWebView2CreateCoreWebView2EnvironmentCompletedHandler interface {
+	combridge.IUnknown
+	ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler
+}
+
+func init() {
+	combridge.RegisterVTable[combridge.IUnknown, iCoreWebView2CreateCoreWebView2EnvironmentCompletedHandler](
+		"{4e8a3389-c9d8-4bd2-b6b5-124fee6cc14d}",
+		_iCoreWebView2CreateCoreWebView2EnvironmentCompletedHandlerInvoke,
+	)
+}
+
+func _iCoreWebView2CreateCoreWebView2EnvironmentCompletedHandlerInvoke(this uintptr, errorCode HRESULT, env *combridge.IUnknownImpl) uintptr {
+	res := combridge.Resolve[iCoreWebView2CreateCoreWebView2EnvironmentCompletedHandler](this).EnvironmentCompleted(errorCode, env)
+	return uintptr(res)
+}