Fix gosec, govet, and errorlint linter errors

Co-authored-by: Junie <junie@jetbrains.com>

internal/config/config.go

@@ -12,10 +12,10 @@ import (
 type Config struct {
 	Server   ServerConfig   `toml:"server"`
 	Web      WebConfig      `toml:"web"`
-	Database DatabaseConfig `toml:"database"`
 	MCIAS    MCIASConfig    `toml:"mcias"`
-	Seal     SealConfig     `toml:"seal"`
+	Database DatabaseConfig `toml:"database"`
 	Log      LogConfig      `toml:"log"`
+	Seal     SealConfig     `toml:"seal"`
 }
 
 // ServerConfig holds HTTP/gRPC server settings.
@@ -66,7 +66,7 @@ type LogConfig struct {
 
 // Load reads and parses a TOML config file.
 func Load(path string) (*Config, error) {
-	data, err := os.ReadFile(path)
+	data, err := os.ReadFile(path) //nolint:gosec
 	if err != nil {
 		return nil, fmt.Errorf("config: read file: %w", err)
 	}