chore: establish local platform baseline

internal/cache/redis.go

@@ -0,0 +1,11 @@
+package cache
+
+import "github.com/redis/go-redis/v9"
+
+func Open(addr, password string, database int) *redis.Client {
+	return redis.NewClient(&redis.Options{
+		Addr:     addr,
+		Password: password,
+		DB:       database,
+	})
+}