v0 state

topic

topic holds the tallies and the set of callers who already reacted.

topics

topics maps topic name -> \*topic, kept in an avl.Tree for deterministic order.

getOrPanic

newTopic

CreateTopic

CreateTopic registers a new empty topic. It is optional: React auto-creates a topic if it does not exist yet. Panics if the topic already exists or the name is empty.

React

React adds the caller's reaction (an emoji) to a topic. Each caller may react at most once per topic. The topic is created on demand if missing. Panics on empty input or when the caller has already reacted to this topic.

TopicCount

TopicCount returns the number of topics on the board.

emojiTally

emojiTally is used to sort a topic's tallies deterministically.

byCountDesc

byCountDesc sorts tallies by count descending, then emoji ascending.

Render

Render returns a Markdown view of the board. If path is a non-empty topic name, only that topic is shown; otherwise all topics are listed.