fix(utils): stop returning mockData on timeout

[simsonas86]

Changes summary:

• Updated fetchNui to never return mockData from the catch block.
• This doesn't resolve fetchNui timing out. (Solved in feat(services): refactor auth and color configuration flow #540).

mockData still gets returned when isEnvBrowser is true, but it's handled in the main try block instead of when a request times out and is caught. This prevents unwanted behaviour like a permission bypass if mockData contains { isBoss: true } e.g.

ps-mdt/web/src/services/authService.svelte.ts

Lines 211 to 227 in 6bc7b40

	/** Fetches the current player's permissions from the server */
	async function loadPermissions(): Promise<void> {
	try {
	const response = await fetchNui<{ permissions?: string[]; isBoss?: boolean }>(
	NUI_EVENTS.AUTH.GET_MY_PERMISSIONS,
	{},
	{ permissions: [], isBoss: true },
	);
	permissions = response?.permissions || [];
	isBoss = response?.isBoss || false;
	} catch (error) {
	debugError("Failed to load permissions:", error);
	// On failure, default to no permissions (safe)
	permissions = [];
	isBoss = false;
	}
	}