[ci skip] more suggested improvements

server/handler/snapshotRegenerateHourly.go

@@ -1,13 +1,13 @@
 package handler
 
 import (
-	"encoding/json"
 	"net/http"
 	"os"
 	"path/filepath"
 	"strings"
 	"time"
 	"vctp/internal/report"
+	"vctp/server/models"
 )
 
 // SnapshotRegenerateHourlyReports regenerates missing hourly snapshot XLSX reports on disk.
@@ -54,15 +54,14 @@ func (h *Handler) SnapshotRegenerateHourlyReports(w http.ResponseWriter, r *http
 		regenerated++
 	}
 
-	resp := map[string]interface{}{
-		"status":       "OK",
-		"total":        len(records),
-		"regenerated":  regenerated,
-		"skipped":      skipped,
-		"errors":       errors,
-		"reports_dir":  reportsDir,
-		"snapshotType": "hourly",
+	resp := models.SnapshotRegenerateReportsResponse{
+		Status:       "OK",
+		Total:        len(records),
+		Regenerated:  regenerated,
+		Skipped:      skipped,
+		Errors:       errors,
+		ReportsDir:   reportsDir,
+		SnapshotType: "hourly",
 	}
-	w.Header().Set("Content-Type", "application/json")
-	json.NewEncoder(w).Encode(resp)
+	writeJSON(w, http.StatusOK, resp)
 }