Stage 17: cap display-name special characters at 5 (ui + backend)

display_name validation gains a rule: at most 5 special characters — the '.' / '_' punctuation (spaces, which separate words, don't count) — so a still-well-formed name can't be mostly punctuation. Mirrored in the Go ValidateDisplayName and the UI validDisplayName; both unit-tested (5 ok, 6 rejected, 'J. R. R. Tolkien' ok). Docs: FUNCTIONAL (+ _ru).
2026-06-09 07:42:47 +02:00
parent 84ecc85f51
commit d87c0fb10b
6 changed files with 32 additions and 3 deletions
@@ -141,7 +141,8 @@ new chat message raises an **unread badge** on the game's menu until the chat is

 ### Profile & settings *(Stage 4 / 8)*
 Edit the display name (letters joined by a single space / "." / "_" separator, with an
-optional trailing ".", up to 32 characters), the timezone (chosen as a UTC offset), the
+optional trailing ".", up to 32 characters and at most 5 special characters — the "." / "_"
+punctuation, spaces aside), the timezone (chosen as a UTC offset), the
 daily away window (on a 10-minute grid, at most 12 hours, wrapping midnight) and the
 block toggles. The profile form is edited inline (no separate edit mode). Linking
 an email or Telegram and merging accounts are covered under "Accounts, linking &