feat: harden query read-only workflow

backend/internal/handler/redis.go

@@ -396,25 +396,41 @@ func RedisInfo(c *gin.Context) {
 	defer client.Close()
 
 	ctx := context.Background()
-	info, err := client.Info(ctx, "server", "memory", "clients", "stats", "keyspace").Result()
+	info, err := client.Info(ctx).Result()
 	if err != nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"detail": err.Error()})
 		return
 	}
 
-	// Parse info into structured map
+	// Parse Redis INFO into both a flat map and section groups.
 	result := make(map[string]interface{})
+	grouped := make(map[string]map[string]interface{})
+	currentSection := "General"
 	sections := strings.Split(info, "\n# ")
 	for _, section := range sections {
 		lines := strings.Split(section, "\n")
-		for _, line := range lines {
+		for lineIndex, line := range lines {
 			line = strings.TrimSpace(line)
-			if line == "" || strings.HasPrefix(line, "#") {
+			if line == "" {
+				continue
+			}
+			if strings.HasPrefix(line, "#") {
+				currentSection = strings.TrimSpace(strings.TrimPrefix(line, "#"))
+				continue
+			}
+			if lineIndex == 0 && !strings.Contains(line, ":") {
+				currentSection = strings.TrimSpace(line)
 				continue
 			}
 			parts := strings.SplitN(line, ":", 2)
 			if len(parts) == 2 {
-				result[strings.TrimSpace(parts[0])] = strings.TrimSpace(parts[1])
+				key := strings.TrimSpace(parts[0])
+				value := strings.TrimSpace(parts[1])
+				result[key] = value
+				if _, ok := grouped[currentSection]; !ok {
+					grouped[currentSection] = make(map[string]interface{})
+				}
+				grouped[currentSection][key] = value
 			}
 		}
 	}
@@ -422,8 +438,15 @@ func RedisInfo(c *gin.Context) {
 	// Add db_size
 	dbSize, _ := client.DBSize(ctx).Result()
 	result["db_size"] = dbSize
+	if _, ok := grouped["Keyspace"]; !ok {
+		grouped["Keyspace"] = make(map[string]interface{})
+	}
+	grouped["Keyspace"]["db_size"] = dbSize
 
-	c.JSON(http.StatusOK, result)
+	c.JSON(http.StatusOK, gin.H{
+		"info":     result,
+		"sections": grouped,
+	})
 }
 
 // GET /api/v1/redis/:id/dbsize