monorepo 버전 준비

## @strpc
기존 RPC를 package화

### @strpc/express
express의 middleware + router 결함

## @sammo
게임 전체
- server, client
- gateway_server, gateway_client

@sammo/util/src/web.ts

@@ -0,0 +1,34 @@
+import { unwrap } from "./unwrap.js";
+
+export function isEmail(addr: string): boolean {
+	return String(addr)
+		.toLowerCase()
+		.match(
+			/^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|.(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
+		) !== null;
+}
+
+export function isIPAddr4(addr: string): boolean {
+	if (/^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(addr)) {
+		return (true)
+	}
+	return false;
+}
+
+export function hexToRgb(hex: string): { r: number; g: number; b: number; } | null {
+    const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
+    return result ? {
+        r: parseInt(result[1], 16),
+        g: parseInt(result[2], 16),
+        b: parseInt(result[3], 16)
+    } : null;
+}
+
+export function isBrightColor(color: string): boolean {
+    const cv = unwrap(hexToRgb(color));
+    if ((cv.r * 0.299 + cv.g * 0.587 + cv.b * 0.114) > 140) {
+        return true;
+    } else {
+        return false;
+    }
+}