feat(stats): add usage stats and quota reset

internal/config/config.go

@@ -16,6 +16,7 @@ type Config struct {
 	Log           LogConfig
 	Auth          AuthConfig
 	ModelRegistry ModelRegistryConfig
+	Quota         QuotaConfig
 }
 
 type ServerConfig struct {
@@ -52,6 +53,10 @@ type ModelRegistryConfig struct {
 	TimeoutSeconds      int
 }
 
+type QuotaConfig struct {
+	ResetIntervalSeconds int
+}
+
 func Load() (*Config, error) {
 	v := viper.New()
 
@@ -71,6 +76,7 @@ func Load() (*Config, error) {
 	v.SetDefault("model_registry.models_dev_ref", "dev")
 	v.SetDefault("model_registry.cache_dir", "./data/model-registry")
 	v.SetDefault("model_registry.timeout_seconds", 30)
+	v.SetDefault("quota.reset_interval_seconds", 300)
 
 	v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
 	v.AutomaticEnv()
@@ -91,6 +97,7 @@ func Load() (*Config, error) {
 	_ = v.BindEnv("model_registry.models_dev_ref", "EZ_MODEL_REGISTRY_MODELS_DEV_REF")
 	_ = v.BindEnv("model_registry.cache_dir", "EZ_MODEL_REGISTRY_CACHE_DIR")
 	_ = v.BindEnv("model_registry.timeout_seconds", "EZ_MODEL_REGISTRY_TIMEOUT_SECONDS")
+	_ = v.BindEnv("quota.reset_interval_seconds", "EZ_QUOTA_RESET_INTERVAL_SECONDS")
 
 	if configFile := os.Getenv("EZ_CONFIG_FILE"); configFile != "" {
 		v.SetConfigFile(configFile)
@@ -136,6 +143,9 @@ func Load() (*Config, error) {
 			CacheDir:            v.GetString("model_registry.cache_dir"),
 			TimeoutSeconds:      v.GetInt("model_registry.timeout_seconds"),
 		},
+		Quota: QuotaConfig{
+			ResetIntervalSeconds: v.GetInt("quota.reset_interval_seconds"),
+		},
 	}
 
 	return cfg, nil