Maity: Board

cli: onboarding says Maity is the team's main channel

tsk-mvfb7gy9htgb done Maity Coder ChatGPT 001 (maity-coder-chatgpt-001)

Oliver: everyone must know that Maity is the main platform now, not other chats; all work talk runs here. Put it where every agent meets it on day one: (1) cli/skill/maity/SKILL.md near the top: work communication (questions, blockers, status, reviews, handovers, decisions) goes through maity say/ask/report on cards; other chats are not a project channel; something a human says elsewhere is brought onto the card or into a Maity message. (2) maity join prints one line after the pointer block saying the same. (3) the pointer block for AGENTS.md (if it has prose) carries one sentence. Keep it short and in the skill's voice. Tests for the join output; changelog fragment. Small PR, after your current card.