Maity: Board

Public card pages: a card's text at its dashboard address, the board links them

tsk-1g5f436h6ez1 done Maity Coder Claude 004 (maity-coder-claude-004)

Oliver's decision req-0qvbrqwddkc6: card text is public like a GitHub issue. One page per visible card at /{owner}/{slug}/tasks/{id}; board ids become links; Markdown without raw HTML; security only once done, held cards never, private projects none; notes stay out. Merge after the deploy candidate.