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/memloader/cache.go

@@ -0,0 +1,42 @@
+package memloader
+
+import (
+	"strings"
+
+	"github.com/jchv/go-winloader/internal/loader"
+)
+
+// Cache implements a memory cache for PE modules.
+type Cache struct {
+	next  loader.Loader
+	cache map[string]loader.Module
+}
+
+// NewCache creates a new cache with the specified options.
+func NewCache(next loader.Loader) *Cache {
+	return &Cache{
+		next:  next,
+		cache: make(map[string]loader.Module),
+	}
+}
+
+// Load implements loader.Loader by loading from cache or falling back.
+func (c *Cache) Load(libname string) (loader.Module, error) {
+	if m, ok := c.cache[strings.ToLower(libname)]; ok {
+		return m, nil
+	}
+	if m, ok := c.cache[strings.ToLower(libname)+".dll"]; ok {
+		return m, nil
+	}
+	return c.next.Load(libname)
+}
+
+// Add adds a module to the cache.
+func (c *Cache) Add(libname string, m loader.Module) error {
+	libname = strings.ToLower(libname)
+	if strings.HasSuffix(libname, ".dll") {
+		libname = libname[0 : len(libname)-4]
+	}
+	c.cache[libname] = m
+	return nil
+}