Rewrite the Mail feature to match the Apple-native look from the
handoff spec: lane-split inbox, AI summary card, clean ThreadRow,
Cc/From + format toolbar in Compose. Drop the gradient hero
surfaces and blurred canvas backgrounds the spec calls out as
anti-patterns, and introduce a token-backed design layer so the
lane palette and SIO tint live in the asset catalog.
- Add Assets.xcassets with SIOTint, LaneFeed, LanePaper, LanePeople
(light + dark variants).
- Add Sources/Core/Design/SIODesign.swift: SIO tokens, Lane enum,
LaneChip, AvatarView, AISummaryCard, KeyboardHint, button styles,
and a glass-chrome helper with iOS 26 / material fallback.
- Extend MailThread with lane + summary; custom Codable keeps old
payloads decodable. Seed mock threads with sensible lanes and
hand-write summaries on launch-copy, investor-update, roadmap-notes.
- Add lane filtering to AppViewModel (selectedLane, selectLane,
laneUnreadCount, laneThreadCount).
- Rewrite MailRootView end to end: sidebar with Inbox/lane rows,
lane filter strip, Apple-native ThreadRow (avatar, unread dot,
lane chip, summary chip), ThreadReadingView with AI summary +
floating reply pill, ComposeView with To/Cc/From/Subject and a
format toolbar.
- Wire Assets.xcassets + SIODesign.swift into project.pbxproj.
Accessibility identifiers preserved byte-identical; new ones
(mailbox.lane.*, lane.chip.*) added only where new.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Jürgen Kunz
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