Replace the collapsed bottom-of-card "Chat about this document" outline
button with a neutral, ghost Coach icon pinned to the top-right of the
document detail-sheet header, mirroring the Insights ask-coach affordance.
The icon uses the muted-foreground token only — never the primary/FAB
gradient — and opens a document-scoped chat drawer.
Present the chat in the Coach chat drawer chrome (right-side sheet on
desktop, bottom sheet on phones; same width caps; close-only, no maximize
or conversations rail) with a quiet "Chatting about: <document>" scope
badge. The drawer reuses the existing pure conversation body and the
existing client hooks, so it still posts /api/documents/inbound/[id]/chat
verbatim: no tools, no health snapshot, fenced document, inbound/replay
refusal, outbound screen, numeric grounding, consent + budget + per-user
rate bucket, indexed-only, plain-text render — the route is untouched.
Thread isolation is unchanged (the general Coach filters documentId: null;
the document route always scopes { documentId: id }).
Add a small reusable headerAction slot to ResponsiveSheet for the header
icon. Retire the DocumentChatPanel container and the AI-section chatSlot;
keep the pure DocumentChatConversation body and documentChatErrorKey.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KPyLteNeTWwEC154X7vLWc
Subtract both the top and bottom safe-area insets from the full-page
Coach height so the composer no longer slides behind the bottom-nav on a
notched phone, and pad the Coach drawer composer and the ResponsiveSheet
bottom-sheet footer for the home-indicator band.
Raise the cycle and illness day-log severity controls to a 44px touch
floor, add hit-slop to the custom-symptom remove button, give the shared
day-log chips a min height, and let the mood-tag action cluster wrap so a
360px row no longer clips the tag name.
The desktop branch of ResponsiveSheet rendered DialogContent as a single
overflow-y-auto grid, so a tall form — or one made tall by browser zoom,
display scaling, or a longer-language label — scrolled its header, body,
and footer together and could push the primary button below the fold. The
branch now runs as a flex column capped at max-h-[calc(100dvh-2rem)], holds
the header and footer shrink-0, and scrolls only the body, matching the
bottom-sheet branch that already pinned its footer. Every form mounted
through the shared surface inherits the fix.
Add a desktop end-to-end guard at a short viewport asserting the body
scrolls and the footer's bottom edge stays within the viewport.
Icons inside buttons drop their manual margins in favour of the
button's built-in gap (two hundred call sites), form field stacks settle
on one spacing step, card titles on exactly two sizes, inline field
errors on one text size, and a dozen hand-rolled loading pulses move
onto the shared skeleton primitive while keeping their silhouettes. The
intake dialog wording joins the rest of the app on 'übersprungen', and
the UI guidelines now document the two deliberate footer and
touch-target systems.
