AbstractContinuum 0.8.0

On AbstractUIC 0.9.0 (@abstractframework/ui-kit ^0.9.12, @abstractframework/panel-chat ^0.7.0, @abstractframework/app-server ^0.1.13).

• Changed: the top bar's account is the kit's ONE account widget (operator ruling 2026-10-29: the docs button,
  Appearance, About and the account are the same kit components in every app). Signed in, one button shows the
  person icon, your name and the connection light; its menu holds Signed in as, Gateway, Copy user id and Disconnect.
  It replaces the Disconnect pill. AfTopBarActions now gets identity="menu" and the useGatewayConnection() value
  itself. Test: src/top_bar_set.test.tsx.
• Changed: the Team page's message box and the backlog advisor's box are the shared rounded multiline composer from
  @abstractframework/panel-chat 0.7.0. The composer renders the Attach button itself, so each box's own attach
  button is gone; the advisor's hold-to-talk microphone sits beside Send as an icon-only button (its "Voice" text label
  is dropped; its name stays "Voice input"). Team keeps its message type, member and room controls on the composer's
  left, Send is the composer's round icon button whose name still says Send, Ask, Reply, Send DM or Create room, and
  Enter / Shift+Enter behave as before; Enter now also creates a room from a member list alone, as the
  button already did. Its Attach button is a plus icon named "Attach a file". Like every shared composer, the box
  turns off the browser's spell-check, autocorrect and auto-capitalisation.
• Changed (from the kit): the Docs assistant's footer reads "Powered by AbstractContinuum’s documentation.".
• Changed (from the kit): a chat approval card lists the tool calls it asks about in words (panel-chat 0.6.5).
• Fixed: on the Team page, reading a message aloud after you change the voice speaks it again in the new voice
  instead of resuming the old one (ui-kit 0.9.6 tts_voice).
• Dependencies: @abstractframework/panel-chat ^0.7.0 (was ^0.6.4) and @abstractframework/ui-kit ^0.9.12
  (was ^0.9.5).