feat: add DisableCooling configuration to manage quota cooldown behavior

internal/config/config.go

@@ -34,6 +34,9 @@ type Config struct {
 	// UsageStatisticsEnabled toggles in-memory usage aggregation; when false, usage data is discarded.
 	UsageStatisticsEnabled bool `yaml:"usage-statistics-enabled" json:"usage-statistics-enabled"`
 
+	// DisableCooling disables quota cooldown scheduling when true.
+	DisableCooling bool `yaml:"disable-cooling" json:"disable-cooling"`
+
 	// QuotaExceeded defines the behavior when a quota is exceeded.
 	QuotaExceeded QuotaExceeded `yaml:"quota-exceeded" json:"quota-exceeded"`
 
@@ -183,6 +186,7 @@ func LoadConfigOptional(configFile string, optional bool) (*Config, error) {
 	// Set defaults before unmarshal so that absent keys keep defaults.
 	cfg.LoggingToFile = false
 	cfg.UsageStatisticsEnabled = false
+	cfg.DisableCooling = false
 	if err = yaml.Unmarshal(data, &cfg); err != nil {
 		if optional {
 			// In cloud deploy mode, if YAML parsing fails, return empty config instead of error.