Added !poker and auth entry point

cmd/oauth/main.go

@@ -0,0 +1,13 @@
+package main
+
+import (
+	"log"
+
+	auth "streambot_twitch/internal/auth"
+)
+
+func main() {
+	if err := auth.StartOAuthServer(":8080"); err != nil {
+		log.Fatalf("OAuth server error: %v", err)
+	}
+}