Refactor blob storage to use UUID primary keys and implement streaming chunking

- Changed blob table to use ID (UUID) as primary key instead of hash
- Blob records are now created at packing start, enabling immediate chunk associations
- Implemented streaming chunking to process large files without memory exhaustion
- Fixed blob manifest generation to include all referenced blobs
- Updated all foreign key references from blob_hash to blob_id
- Added progress reporting and improved error handling
- Enforced encryption requirement for all blob packing
- Updated tests to use test encryption keys
- Added Cyrillic transliteration to README

internal/cli/root.go

@@ -4,6 +4,14 @@ import (
 	"github.com/spf13/cobra"
 )
 
+// RootFlags holds global flags
+type RootFlags struct {
+	Verbose bool
+	Debug   bool
+}
+
+var rootFlags RootFlags
+
 // NewRootCommand creates the root cobra command
 func NewRootCommand() *cobra.Command {
 	cmd := &cobra.Command{
@@ -15,6 +23,10 @@ on the source system.`,
 		SilenceUsage: true,
 	}
 
+	// Add global flags
+	cmd.PersistentFlags().BoolVarP(&rootFlags.Verbose, "verbose", "v", false, "Enable verbose output")
+	cmd.PersistentFlags().BoolVar(&rootFlags.Debug, "debug", false, "Enable debug output")
+
 	// Add subcommands
 	cmd.AddCommand(
 		NewBackupCommand(),
@@ -27,3 +39,8 @@ on the source system.`,
 
 	return cmd
 }
+
+// GetRootFlags returns the global flags
+func GetRootFlags() RootFlags {
+	return rootFlags
+}