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/loader_windows.go

@@ -0,0 +1,33 @@
+package winloader
+
+import (
+	"github.com/jchv/go-winloader/internal/memloader"
+	"github.com/jchv/go-winloader/internal/winloader"
+)
+
+var native = winloader.Loader{}
+
+var cache = memloader.NewCache(native)
+
+var ldr = memloader.New(memloader.Options{
+	Next:    cache,
+	Machine: winloader.NativeMachine{},
+})
+
+// LoadFromFile loads a Windows module from file using the native Windows
+// loader.
+func LoadFromFile(name string) (Module, error) {
+	return native.Load(name)
+}
+
+// LoadFromMemory loads a Windows module from memory.
+func LoadFromMemory(data []byte) (Module, error) {
+	return ldr.LoadMem(data)
+}
+
+// AddToCache adds a module to the loader cache, allowing in-memory libraries
+// to link to it. Note that modules in the cache must exist in the same
+// address space.
+func AddToCache(name string, module Module) error {
+	return cache.Add(name, module)
+}