feat: add registry config, image upload/download, and OCI format support

Backend:
- Add registry_address configuration API (GET/POST)
- Add tar image upload with OCI and Docker format support
- Add image download with streaming optimization
- Fix blob download using c.Send (Fiber v3 SendStream bug)
- Add registry_address prefix stripping for all OCI v2 endpoints
- Add AGENTS.md for project documentation

Frontend:
- Add settings store with Snackbar notifications
- Add image upload dialog with progress bar
- Add download state tracking with multi-stage feedback
- Replace alert() with MUI Snackbar messages
- Display image names without registry_address prefix

🤖 Generated with [Qoder](https://qoder.com)

go.mod

@@ -5,7 +5,10 @@ go 1.25.0
 require (
 	github.com/glebarez/sqlite v1.11.0
 	github.com/gofiber/fiber/v3 v3.0.0-beta.2
+	github.com/gofrs/uuid v4.4.0+incompatible
+	github.com/jedib0t/go-pretty/v6 v6.7.1
 	github.com/spf13/cobra v1.10.1
+	golang.org/x/crypto v0.41.0
 	gorm.io/gorm v1.31.1
 )
 
@@ -21,7 +24,9 @@ require (
 	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/mattn/go-runewidth v0.0.16 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/rivo/uniseg v0.4.7 // 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