Add -debug flag to restupload CLI tool

Adds a -debug flag that sets rest.Debug to true, enabling debug output for REST API calls.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: MagicalTux

cli/restupload/main.go

@@ -82,6 +82,7 @@ var (
 	method    = flag.String("method", "POST", "HTTP method for the initial API request")
 	cookies   = flag.String("cookies", "", "cookies to send with the request (format: name1=value1; name2=value2)")
 	insecure  = flag.Bool("insecure", false, "allow insecure SSL connections (skip certificate verification)")
+	debug     = flag.Bool("debug", false, "enable debug mode for REST API calls")
 	headers   headerValues
 )
 
@@ -94,6 +95,12 @@ func main() {
 		os.Exit(1)
 	}
 
+	// Enable debug mode if requested
+	if *debug {
+		rest.Debug = true
+		log.Println("Debug mode enabled")
+	}
+
 	var p rest.Param = make(map[string]any)
 
 	if param := *params; param != "" {