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/jchv/go-winloader/internal/winloader/hacks_other.go

@@ -0,0 +1,16 @@
+// +build !windows
+
+package winloader
+
+import "errors"
+
+// MakePEBEntryForModule is a hack that inserts an entry for the loaded module
+// into the PEB loader data to make it appear to Windows functions.
+func MakePEBEntryForModule() error {
+	return errors.New("platform not supported")
+}
+
+// GetProcessHInstance gets the HINSTANCE for the current process.
+func GetProcessHInstance() (uintptr, error) {
+	return errors.New("platform not supported")
+}