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/machine_windows.go

@@ -0,0 +1,32 @@
+package winloader
+
+import (
+	"github.com/jchv/go-winloader/internal/loader"
+	"github.com/jchv/go-winloader/internal/vmem"
+)
+
+// NativeMachine is a loader.Machine implementation that uses the native
+// machine the binary is running on.
+type NativeMachine struct{}
+
+// IsArchitectureSupported implements loader.Machine.
+func (NativeMachine) IsArchitectureSupported(machine int) bool {
+	return machine == NativeArch
+}
+
+func (NativeMachine) GetPageSize() uint64 {
+	return vmem.GetPageSize()
+}
+
+// Alloc implements loader.Machine.
+func (NativeMachine) Alloc(addr, size uint64, allocType, protect int) loader.Memory {
+	if mem := vmem.Alloc(addr, size, allocType, protect); mem != nil {
+		return mem
+	}
+	return nil
+}
+
+// MemProc implements loader.MemProc.
+func (NativeMachine) MemProc(addr uint64) loader.Proc {
+	return Proc(addr)
+}