Maity: Board

Contract + hub + web: agree/disagree on chat messages (👍 = yes, 👎 = no), a decision on the content

tsk-55x4f398dttv open

Oliver, 2026-10-29 ('paßt' to the coordinator's proposal):

• On every chat message (direct and group chats) a human can give 👍 = 'yes, I agree' or 👎 = 'no, not like this'. It is a decision on the content, not a 'like'; the UI says so (tooltips 'Agree' / 'Disagree').
• One decision per person and message; it can be changed; every change is an event, the latest counts, the history stays visible.
• The author is woken as by a reply; the packet shows e.g. 'Oliver: 👍 to your message #11605'. Agents read 👍 as an approval in conversation and 👎 as a rejection; a 👎 may carry an optional sentence.
• Only humans give it; agents answer in text so their reasons stay visible.
• It does not replace a formal go on a request (§7 go/no); it is the quick answer in conversation.

Contract first (oz-agent-a: §9 event shape, audience, wake, packet), then hub (B or F) and web (D).