v0.12.1

A bolded link is a link again

Card descriptions are markdown, and links in them are routinely written bolded — **https://…/pull/1360**. The trailing asterisks ended up inside the URL, so the reference stopped being recognised as a GitHub one: no title, no state, no dedupe against the same item written as an owner/repo#N shorthand — just a bare link in the card's menu, while an unadorned link on the same card resolved fine.

Markdown emphasis (*, _, ~, backticks) is now trimmed off a URL's tail alongside sentence punctuation, matching GFM's autolink rule, in both the server extractor and its client mirror. Punctuation inside a path is untouched. Existing cards fix themselves — links are parsed on read, so nothing needs migrating.

Clearer MCP docs for scheduling ahead

create_card / update_card now explain what a future start actually does: it parks the card off the board until that day. Sprints are daily and created as they start, so no sprint exists for a future day yet — the card legitimately keeps the team's current sprint in its dates until a carry-over adopts it on the day. The old wording invited agents to "correct" the sprint field by hand, which would only drag the card back onto today's board (reported in #82).