fix: remove debug console.log statements from LikersTooltip (#462)

Removes debug logging that was left in from initial development in PR #233.
Keeps console.error for actual error handling.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[e-mail]>

frontend/src/lib/components/LikersTooltip.svelte

···
 			return;
 		}
 
-		console.log('fetching likers for track', trackId);
-
 		const fetchLikers = async () => {
 			try {
 				const url = `${API_URL}/tracks/${trackId}/likes`;
-				console.log('fetching from:', url);
 				const response = await fetch(url);
 
 				if (!response.ok) {
···
 				}
 
 				const data = await response.json();
-				console.log('received likers data:', data);
 				likers = data.users || [];
 			} catch (err) {
 				error = 'failed to load';