feat: add cloudflare auto ttl

config.go

@@ -29,6 +29,7 @@ type Config struct {
 	DebounceDelay     time.Duration
 
 	RecordTTL      int
+	CloudflareAutoTTL bool
 	ExcludeRouters map[string]struct{}
 }
 
@@ -83,6 +84,12 @@ func LoadConfig() (*Config, error) {
 		return nil, fmt.Errorf("RECORD_TTL: invalid integer %q: %w", ttlStr, err)
 	}
 
+	autoTTLStr := envOrDefault("CF_AUTO_TTL", "true")
+	cfg.CloudflareAutoTTL, err = strconv.ParseBool(autoTTLStr)
+	if err != nil {
+		return nil, fmt.Errorf("CF_AUTO_TTL: invalid boolean %q: %w", autoTTLStr, err)
+	}
+
 	cfg.ExcludeRouters = make(map[string]struct{})
 	if v := os.Getenv("EXCLUDE_ROUTERS"); v != "" {
 		for _, r := range strings.Split(v, ",") {