refactor(convert_role): Improve role conversion logic for legacy formats (#9219)

- Add new imports: `database/sql`, `encoding/json`, and `conf` package in `convert_role.go`.
- Simplify permission entry initialization by removing redundant struct formatting.
- Update error logging messages for better clarity.
- Replace `op.GetUsers` with direct database access for fetching user roles.
- Implement role update logic using `rawDb` and handle legacy int role conversion.
- Count the number of users whose roles are updated and log completion.
- Introduce `IsLegacyRoleDetected` function to check for legacy role formats.
- Modify `cmd/common.go` to invoke role conversion if legacy format is detected.

cmd/common.go

@@ -1,6 +1,7 @@
 package cmd
 
 import (
+	"github.com/alist-org/alist/v3/internal/bootstrap/patch/v3_46_0"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -16,6 +17,12 @@ func Init() {
 	bootstrap.InitConfig()
 	bootstrap.Log()
 	bootstrap.InitDB()
+
+	if v3_46_0.IsLegacyRoleDetected() {
+		utils.Log.Warnf("Detected legacy role format, executing ConvertLegacyRoles patch early...")
+		v3_46_0.ConvertLegacyRoles()
+	}
+
 	data.InitData()
 	bootstrap.InitStreamLimit()
 	bootstrap.InitIndex()