update aggregation logic

db/helpers.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"log/slog"
 	"strings"
 	"time"
 
@@ -338,13 +339,18 @@ func ApplySQLiteTuning(ctx context.Context, dbConn *sqlx.DB) {
 		return
 	}
 	// Best-effort pragmas; ignore errors to stay safe in constrained environments.
+	var err error
 	pragmas := []string{
 		`PRAGMA journal_mode=WAL;`,
 		`PRAGMA synchronous=NORMAL;`,
 		`PRAGMA temp_store=MEMORY;`,
+		`PRAGMA optimize;`,
 	}
 	for _, pragma := range pragmas {
-		_, _ = dbConn.ExecContext(ctx, pragma)
+		_, err = dbConn.ExecContext(ctx, pragma)
+		if logger, ok := ctx.Value("logger").(*slog.Logger); ok && logger != nil {
+			logger.Debug("Applied SQLite tuning pragma", "pragma", pragma, "error", err)
+		}
 	}
 }