v0.3.0: Medication and Speed Dial

Added

• Medication module (opt-in): a calm adherence logger modeled on the Diet module. Log
  doses, keep per-medication metrics (hidden from the daily tally), set up templates and daily
  reminders, and review it all in a web view. A logger, not an advisor.
• Speed dial (owner-curated Home Assistant pads): program another Telegram account's 0-9
  pad, mapping each slot to a Home Assistant command you authored. They send a bare digit (or
  tap a button) and it fires only that command. An optional "speed-dial only" lock restricts an
  account to its pad, with no tasks or chat.
• First-run reaction demo in the web UI: a self-playing reel that teaches the "command pad, not
  a chatbot" model, with a replay button.
• Browser (non-Telegram) demo signup: the signup link opens the create-account panel directly.
• The docs site (brochure, manual, cheatsheet, how-tos) is now published to GitHub Pages.

Changed

• The web shortcut legend nests sub-shortcuts under their parent for a cleaner map.

Fixed

• The reaction-demo reel runs slower and pauses on hover or focus.
• Stale quick-reply chips are cleared on a contentless acknowledgement.