fix(config): ensure NotifyOnResolve defaults to true for new and legacy configs

internal/api/notifications.go

@@ -123,6 +123,14 @@ func (h *NotificationHandlers) UpdateEmailConfig(w http.ResponseWriter, r *http.
 	log.Info().
 		Msg("Received email config update")
 
+	// Parse strict subset to check for presence of fields
+	var presenceCheck struct {
+		RateLimit *int `json:"rateLimit"`
+	}
+	if err := json.Unmarshal(body, &presenceCheck); err != nil {
+		// Non-fatal, just means we can't do presence check
+	}
+
 	var config notifications.EmailConfig
 	if err := json.Unmarshal(body, &config); err != nil {
 		log.Error().Err(err).Msg("Failed to parse email config") // Don't log body with passwords
@@ -130,12 +138,18 @@ func (h *NotificationHandlers) UpdateEmailConfig(w http.ResponseWriter, r *http.
 		return
 	}
 
+	existingConfig := h.getMonitor(r.Context()).GetNotificationManager().GetEmailConfig()
+
 	// If password is empty, preserve the existing password
 	if config.Password == "" {
-		existingConfig := h.getMonitor(r.Context()).GetNotificationManager().GetEmailConfig()
 		config.Password = existingConfig.Password
 	}
 
+	// If rateLimit was NOT provided (nil in presence check), preserve existing
+	if presenceCheck.RateLimit == nil {
+		config.RateLimit = existingConfig.RateLimit
+	}
+
 	log.Info().
 		Bool("enabled", config.Enabled).
 		Str("smtp", config.SMTPHost).

internal/config/persistence.go

@@ -530,6 +530,9 @@ func (c *ConfigPersistence) LoadAlertConfig() (*alerts.AlertConfig, error) {
 					Memory: &alerts.HysteresisThreshold{Trigger: 85, Clear: 80},
 					Disk:   &alerts.HysteresisThreshold{Trigger: 90, Clear: 85},
 				},
+				Schedule: alerts.ScheduleConfig{
+					NotifyOnResolve: true,
+				},
 				StorageDefault: alerts.HysteresisThreshold{Trigger: 85, Clear: 80},
 				TimeThreshold:  5,
 				TimeThresholds: map[string]int{
@@ -594,6 +597,25 @@ func (c *ConfigPersistence) LoadAlertConfig() (*alerts.AlertConfig, error) {
 	if config.HysteresisMargin <= 0 {
 		config.HysteresisMargin = 5.0
 	}
+	// NotifyOnResolve defaults to true (send recovery notifications).
+	// Since bool zero-value is false, we check raw JSON to distinguish
+	// "missing field" (old configs) from "explicitly set to false".
+	if !config.Schedule.NotifyOnResolve {
+		// Use a temporary map to check if the field exists in the JSON
+		var raw map[string]interface{}
+		// Ignore error here as we've already unmarshaled successfully above
+		if json.Unmarshal(data, &raw) == nil {
+			// Check if "schedule" exists and has "notifyOnResolve"
+			if schedule, ok := raw["schedule"].(map[string]interface{}); ok {
+				if _, exists := schedule["notifyOnResolve"]; !exists {
+					config.Schedule.NotifyOnResolve = true
+				}
+			} else {
+				// "schedule" block missing entirely -> default to true
+				config.Schedule.NotifyOnResolve = true
+			}
+		}
+	}
 	// NodeDefaults.Temperature: Allow Trigger=0 to disable temperature alerting
 	if config.NodeDefaults.Temperature == nil || config.NodeDefaults.Temperature.Trigger < 0 {
 		config.NodeDefaults.Temperature = &alerts.HysteresisThreshold{Trigger: 80, Clear: 75}