refactor: loader package

client/go.mod

@@ -4,7 +4,6 @@ go 1.26.0
 
 require (
 	fyne.io/fyne/v2 v2.7.3
-	galaxy/loader v0.0.0
 	github.com/fogleman/gg v1.3.0
 	github.com/stretchr/testify v1.11.1
 )
@@ -31,10 +30,11 @@ require (
 	github.com/hack-pad/safejs v0.1.1 // indirect
 	github.com/jeandeaual/go-locale v0.0.0-20250612000132-0ef82f21eade // indirect
 	github.com/jsummers/gobmp v0.0.0-20230614200233-a9de23ed2e25 // indirect
-	github.com/kr/text v0.2.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
 	github.com/nicksnyder/go-i18n/v2 v2.6.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/rymdport/portal v0.4.2 // indirect
 	github.com/srwiley/oksvg v0.0.0-20221011165216-be6e8873101c // indirect
 	github.com/srwiley/rasterx v0.0.0-20220730225603-2ab79fcdd4ef // indirect
@@ -43,5 +43,6 @@ require (
 	golang.org/x/net v0.50.0 // indirect
 	golang.org/x/sys v0.41.0 // indirect
 	golang.org/x/text v0.34.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )