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)

pkg/tool/human.go

@@ -0,0 +1,76 @@
+package tool
+
+import "fmt"
+
+const (
+	_  = iota
+	KB = 1 << (10 * iota) // 1 KB = 1024 bytes
+	MB                    // 1 MB = 1024 KB
+	GB                    // 1 GB = 1024 MB
+	TB                    // 1 TB = 1024 GB
+	PB                    // 1 PB = 1024 TB
+)
+
+func HumanDuration(nano int64) string {
+	duration := float64(nano)
+	unit := "ns"
+	if duration >= 1000 {
+		duration /= 1000
+		unit = "us"
+	}
+
+	if duration >= 1000 {
+		duration /= 1000
+		unit = "ms"
+	}
+
+	if duration >= 1000 {
+		duration /= 1000
+		unit = " s"
+	}
+
+	return fmt.Sprintf("%6.2f%s", duration, unit)
+}
+
+func HumanSize(size int64) string {
+
+	switch {
+	case size >= PB:
+		return fmt.Sprintf("%.2f PB", float64(size)/PB)
+	case size >= TB:
+		return fmt.Sprintf("%.2f TB", float64(size)/TB)
+	case size >= GB:
+		return fmt.Sprintf("%.2f GB", float64(size)/GB)
+	case size >= MB:
+		return fmt.Sprintf("%.2f MB", float64(size)/MB)
+	case size >= KB:
+		return fmt.Sprintf("%.2f KB", float64(size)/KB)
+	default:
+		return fmt.Sprintf("%d bytes", size)
+	}
+}
+
+// BytesToUnit 将字节转换为指定单位
+func BytesToUnit(bytes int64, unit float64) float64 {
+	return float64(bytes) / unit
+}
+
+// BytesToKB 转换为 KB
+func BytesToKB(bytes int64) float64 {
+	return BytesToUnit(bytes, KB)
+}
+
+// BytesToMB 转换为 MB
+func BytesToMB(bytes int64) float64 {
+	return BytesToUnit(bytes, MB)
+}
+
+// BytesToGB 转换为 GB
+func BytesToGB(bytes int64) float64 {
+	return BytesToUnit(bytes, GB)
+}
+
+// BytesToTB 转换为 TB
+func BytesToTB(bytes int64) float64 {
+	return BytesToUnit(bytes, TB)
+}