feat: propagate safeMode status via context

jsmod.go

@@ -1,6 +1,22 @@
 package jsmod
 
-import "sync"
+import (
+	"context"
+	"sync"
+)
+
+type contextKey string
+
+const SafeModeKey contextKey = "SafeMode"
+
+// IsSafeMode checks if the provided context indicates that the execution is in safe mode.
+func IsSafeMode(ctx context.Context) bool {
+	v := ctx.Value(SafeModeKey)
+	if sm, ok := v.(bool); ok {
+		return sm
+	}
+	return false // Default to false if not specified (internal trusted caller)
+}
 
 type Module struct {
 	Exports    map[string]any