Feat: card_mark repo

todos.md

@@ -68,7 +68,4 @@
 - bot ends a turn after guessing one word only;
 - sync writing to json cache; what happens now: timer (or other side routine) overwrites old room, while mime making clue;
 -----------------
-- instant timer over;
-- bot does not react;
-{"time":"2025-07-04T16:01:57.755750352+03:00","level":"INFO","source":{"function":"gralias/handlers.StartTurnTimer.func1","file":"/home/grail/projects/web/gralias/handlers/timer.go","line":43},"msg":"turn time is over","room_id":"d1jt16sg3nfp9p4thgl0"}
-looking for bot to move team-turn: red mime-done: false bot-map: map[] is_running: true blueMime:  redMime:
+- card marks;