### Problem The title on the element page shows only the code, for example "2.305". Variants of the same code (`UB-2.305-a` and `UB-2.305-b`) get the same title, so after following a variant link the coach cannot see which variant the page shows. The cards in "Other variants" also show only the code, so they look the same as the title. ### What to do - Show the variant letter in the `h1` in `ElementDetailHeader.tsx`, for example "2.305-b · Name". - Show the letter on the cards in "Other variants" (`ElementVariants.tsx`) too. - The letter is the last part of the id (`UB-2.305-b` → `b`). Put the logic in one helper, for example in `src/lib/catalog.ts`, so the title and the cards use the same rule. ### To decide Should the letter be shown also when the code has only one variant ("2.305-a")? Suggestion: only when the code has more than one variant, so most titles stay short. ### Done when - [ ] Two variants of the same code have different titles. - [ ] The variant cards show their letter. - [ ] A test checks the title for an element with and without other variants.