Refactor settings handling to support context-based reloading and add utility functions for context management

internal/report/snapshots.go

@@ -554,7 +554,7 @@ func CreateTableReport(logger *slog.Logger, Database db.Database, ctx context.Co
 	if err := db.ValidateTableName(tableName); err != nil {
 		return nil, err
 	}
-	reportCfg := reloadReportSettingsForReport(logger, cfg)
+	reportCfg := reloadReportSettingsForReport(ctx, logger, cfg)
 	start := time.Now()
 	logger.Debug("Create table report start", "table", tableName)
 
@@ -792,13 +792,17 @@ func CreateTableReport(logger *slog.Logger, Database db.Database, ctx context.Co
 	return buffer.Bytes(), nil
 }
 
-func reloadReportSettingsForReport(logger *slog.Logger, cfg *settings.Settings) *settings.Settings {
+func reloadReportSettingsForReport(ctx context.Context, logger *slog.Logger, cfg *settings.Settings) *settings.Settings {
 	if cfg == nil {
 		return nil
 	}
 	if strings.TrimSpace(cfg.SettingsPath) == "" {
 		return cfg
 	}
+	if settings.IsReloadedInContext(ctx, cfg) {
+		logger.Debug("settings already reloaded for current run; using in-memory settings", "settings_file", cfg.SettingsPath)
+		return cfg
+	}
 
 	reloaded := settings.New(logger, cfg.SettingsPath)
 	if err := reloaded.ReadYMLSettings(); err != nil {