Implements the last unbuilt easter egg (PLAN Task 11 #5, TODO «Пасхалки» #5): the
404 used to show static ASCII art; now a grass block drops into a dusk world,
cracks over three clicks, then bursts into square debris and respawns. Keyboard
accessible (a real button), and under prefers-reduced-motion the fall and burst
are skipped while the crack stages still work. Replaces the NOT_FOUND_ART pane;
i18n adds notFound.blockAria/blockHint (ru+en).
- chore(backend): sync Cargo.lock with gateway dev-dependency
- feat(frontend): ClickGui replica matching the in-game GUI — category panels, Modules/Settings switch, theme cards
- feat(frontend): floating glass top bar in the mod's UI language
- fix(frontend): soft night backdrop for the ClickGui, editor that fits one screen
- chore(frontend): replace em dashes in UI copy with lighter separators
- refactor(frontend): split landing sections and theme editor into subfolders (4-files-per-folder rule)
- feat(frontend): login and registration in the mod's glass panel style
- feat(frontend): link the game with a device code
- feat(frontend): account page with avatar upload and linked games
- feat(frontend): my configs with share codes and publishing
- feat(frontend): public showcase listing and detail pages
- chore(frontend): drop em dashes from visible copy
- feat(frontend): atmospheric backdrop, glass download block and ClickGui-style FAQ on the landing
- feat(frontend): Konami code, DevTools console greeting and ASCII 404 block
- feat: public player profiles at /u/:id and author link in the showcase
- fix(frontend): stop the theme editor overflowing horizontally at 375px
