Add Wildberries product fetching and rate limiting functionality

internal/config/config.go

@@ -1,17 +1,18 @@
 package config
 
+import "github.com/joho/godotenv"
+
 type Config struct {
-	DB    string
-	HTTP  string
-	GRPC  string
-	Kafka string
+	Redis    *RedisConfig
+	Database *DatabaseConfig
 }
 
-func Load() Config {
-	return Config{
-		DB:    "dbname=test password=GjitkYf[eq user=postgres sslmode=disable",
-		HTTP:  ":8080",
-		GRPC:  ":50051",
-		Kafka: "localhost:9092",
+func LoadConfig() (*Config, error) {
+	err := godotenv.Load()
+	if err != nil {
+		return nil, err
 	}
+	redisConfig := LoadRedisConfig()
+	databaseConfig := LoadDatabaseConfig()
+	return &Config{Redis: redisConfig, Database: databaseConfig}, nil
 }