add initial application structure with configuration, logging, and health check endpoints

internal/infra/cache/redis.go

@@ -0,0 +1,17 @@
+package cache
+
+import (
+	"github.com/redis/go-redis/v9"
+
+	"epic-ent/internal/config"
+)
+
+func NewRedis(cfg *config.Config) (*redis.Client, error) {
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     cfg.Redis.Addr,
+		Password: cfg.Redis.Password,
+		DB:       cfg.Redis.DB,
+	})
+
+	return rdb, nil
+}