feat(delivery): integrate PostgreSQL delivery

server/internal/config/config.go

@@ -78,12 +78,14 @@ type Config struct {
 	DeliveryServiceToken       string
 	DeliverySchedulerEnabled   bool
 	DeliveryDispatchSeconds    int
+	DeliveryPollSeconds        int
 	DeliveryCallbackBaseURL    string
 	DeliveryCredentialSecret   string
 	ReservationTTLMinutes      int
 	DeliveryGlobalLimit        int
 	DeliveryTargetLimit        int
 	DeliveryHostInstanceLimit  int
+	DeliveryBusinessLimit      int
 	DeliveryDataDisks          []string
 	SINABaseURL                string
 	SINAUsername               string
@@ -164,12 +166,14 @@ func Load() Config {
 		DeliveryServiceToken:       env("DELIVERY_SERVICE_TOKEN", ""),
 		DeliverySchedulerEnabled:   envBool("DELIVERY_SCHEDULER_ENABLED", false),
 		DeliveryDispatchSeconds:    envInt("DELIVERY_DISPATCH_SECONDS", 5),
+		DeliveryPollSeconds:        envInt("DELIVERY_POLL_SECONDS", 5),
 		DeliveryCallbackBaseURL:    trimURL(env("DELIVERY_CALLBACK_BASE_URL", publicBaseURL)),
 		DeliveryCredentialSecret:   env("DELIVERY_CREDENTIAL_SECRET", env("JWT_SECRET", "change-this-secret")),
 		ReservationTTLMinutes:      envInt("DELIVERY_RESERVATION_TTL_MINUTES", 120),
 		DeliveryGlobalLimit:        envInt("DELIVERY_GLOBAL_LIMIT", 2),
 		DeliveryTargetLimit:        envInt("DELIVERY_TARGET_LIMIT", 2),
 		DeliveryHostInstanceLimit:  envInt("DELIVERY_HOST_INSTANCE_LIMIT", 4),
+		DeliveryBusinessLimit:      envInt("DELIVERY_BUSINESS_LIMIT", 1),
 		DeliveryDataDisks:          splitCSV(env("DELIVERY_DATA_DISKS", "/data,/disk1,/mnt,/opt/mysql-delivery")),
 		SINABaseURL:                trimURL(env("SINA_BASE_URL", "https://sinai.qiniu.io:443")),
 		SINAUsername:               env("SINA_USERNAME", ""),