feat: complete OCI registry implementation with docker push/pull support

A lightweight OCI (Open Container Initiative) registry implementation written in Go.

go.mod

@@ -0,0 +1,35 @@
+module gitea.loveuer.com/loveuer/cluster
+
+go 1.25.0
+
+require (
+	github.com/glebarez/sqlite v1.11.0
+	github.com/gofiber/fiber/v3 v3.0.0-beta.2
+	github.com/spf13/cobra v1.10.1
+	gorm.io/gorm v1.31.1
+)
+
+require (
+	github.com/andybalholm/brotli v1.2.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/glebarez/go-sqlite v1.21.2 // indirect
+	github.com/gofiber/utils/v2 v2.0.0-rc.1 // indirect
+	github.com/google/uuid v1.6.0 // 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/klauspost/compress v1.18.0 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/spf13/pflag v1.0.9 // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasthttp v1.65.0 // indirect
+	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/text v0.30.0 // indirect
+	modernc.org/libc v1.22.5 // indirect
+	modernc.org/mathutil v1.5.0 // indirect
+	modernc.org/memory v1.5.0 // indirect
+	modernc.org/sqlite v1.23.1 // indirect
+)