e8ea179228
Adds case management to the Compliance Advisor widget. - topic threads: cases group into threads; the left menu shows each thread's first question as the Thema with expandable follow-ups. Send = follow-up to the active thread (carries the thread's prior Q&A as history for contextual answers); "+" starts a new topic. - delete: a trash action per question (menu + stacked view). - copy: single Q&A (question + answer + evidence + footnotes) or a whole thread, as Markdown to the clipboard (pure formatters in copy.ts). - fullscreen: compact -> panel -> fullscreen view. - route.ts consumes an optional bounded `history` so follow-ups are contextual for both the widget and the workspace consumer. Tests: copy formatter unit tests + Playwright specs (threads/new-topic, delete, fullscreen, copy affordance). No deploy. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>