v1.0.0 — Dead man's switch for cron jobs

Ordinary monitoring answers "is the server up" and says nothing about a backup that stopped running three weeks ago. Pulse watches from the other side: a missing signal is the signal.

• Two schedule kinds — a plain period or a cron expression — plus a grace window, so a slow run is not an emergency
• Ping endpoints for success, failure and start; the start ping measures the run's duration
• The request body is kept and shown next to the event, so a failure explains itself
• A console built around an event feed rather than a grid of cards: what just happened, with the checks as filters beside it
• Telegram and webhook notifications
• Three languages, light and dark themes, one Go binary with SQLite