feat(03-01): initialize fonoteka workspace with user and genre migrations

Add compiled golem15.user and golem15.fonoteka plugins, squash schema
to the genre slice tables, and seed the 15 canonical genres on ICU pl-PL.

Co-authored-by: Cursor <cursoragent@cursor.com>

go.mod

@@ -0,0 +1,35 @@
+module git.golem15.com/golem15/fonoteka/plugins/golem15/user
+
+go 1.27.0
+
+toolchain go1.27.0
+
+require (
+	git.golem15.com/golem15/summercms v0.0.0
+	github.com/go-gormigrate/gormigrate/v2 v2.1.7
+	gorm.io/gorm v1.31.2
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.10.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/knadh/koanf/maps v0.1.2 // indirect
+	github.com/knadh/koanf/parsers/yaml v1.1.1 // indirect
+	github.com/knadh/koanf/providers/confmap v1.0.1 // indirect
+	github.com/knadh/koanf/providers/env/v2 v2.0.1 // indirect
+	github.com/knadh/koanf/providers/file v1.2.1 // indirect
+	github.com/knadh/koanf/v2 v2.3.6 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/spf13/cobra v1.10.2 // indirect
+	github.com/spf13/pflag v1.0.9 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/sys v0.48.0 // indirect
+	golang.org/x/term v0.46.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+)
+
+replace git.golem15.com/golem15/summercms => ../../../../summercms.go