endpoint to get all achievements with unlocked/locked info for a service

[hanneskt]

so users can see which achievements they have and haven't unlocked for a service

Here, add a function for_service. It should return a list of AchievementUnlockedPayload for a service.

ZPI/src/dto/achievement.rs

Lines 87 to 95 in c2e89dd

	impl AchievementUnlockedPayload {
	pub async fn for_user(
	db: &Database,
	user_id: u32,
	) -> Result<Vec<AchievementUnlockedPayload>, AppError> {
	let rows = db.achievements().unlocked_for_user(user_id).await?;
	Ok(unpack_achievements(rows).collect())
	}
	}