refac: decouple persistence and image storage behind driver registries

internal/infrastructure/config/settings.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
@@ -36,6 +37,10 @@ type Settings struct {
 	Container          bool
 }
 
+func (s Settings) DataDir() string {
+	return filepath.Dir(s.DBFile)
+}
+
 func (s Settings) IsProduction() bool {
 	return s.Environment == "production"
 }