v0.3.9

HeartBeat 2.0 v0.3.9 lets you try a wake right away, and see what it will do before it does it.

• Run it now. /pulse run <id> fires a recurring wake or role now, under the usual checks (busy chat, quiet hours, daily caps, budgets), and counts as one of its fires. It won't queue a second copy of one that's already waiting or running. Watchers and one-time reminders keep firing on their own; preview them with /pulse test.
• Dry-run it. /pulse test <id> shows whether the wake would run right now (and if not, why), when it fires next, its cache line and the text the agent would get for its next turn. For a watcher with nothing waiting, it says whether a match would run now. Nothing is sent, spent or changed.
• One cache line. The agent's receipt, /pulse add and the governor card agree, and a cold wake shows its cost once.
• See filters before you approve. A watcher waiting for your OK says what it would wait for, including any task, board, message or emoji filter. /pulse list and /pulse why show filters too.

Upgrade: reinstall and restart the gateway. No settings or database changes. Roadmap: #139.