fix(validation): update regex for directory validation in WebSocket utility

- Modified the regex pattern in the `readValidDirectory` function to allow for a wider range of characters, including colons, improving the validation of directory names.
- This change enhances input integrity by ensuring valid directory formats are accepted.

packages/server/src/wss/utils.ts

@@ -40,7 +40,7 @@ export const readValidDirectory = (
 	directory: string,
 	serverId?: string | null,
 ) => {
-	if (!/^[\w/. -]{1,500}$/.test(directory)) {
+	if (!/^[\w/. :-]{1,500}$/.test(directory)) {
 		return false;
 	}