Polish desktop chat and account flows

[mubarakcoded]

Summary

• make message bubbles content-sized, keep time-only delivery metadata inline, and align message and reply text from the leading edge
• refine reply navigation, reaction controls, and the reply context above the composer
• add localized day separators for the chat timeline
• add edit-in-composer, a searchable categorized emoji picker, and clearer media attachment feedback
• reuse existing direct conversations and harden profile refresh, signed-out account recovery, and account actions

Verification

• xcodebuild build for the macOS app target
• focused tests for time-only message metadata, inline layout eligibility, and timeline day boundaries
• xcodebuild build-for-testing for the app and test targets
• git diff --check

The refreshed app was visually verified with the heavy-chat fixture.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 72c1e8f1-4d02-4236-850f-0fbf6ab299c9

📥 Commits

Reviewing files that changed from the base of the PR and between f7dba8f and 2670828.

📒 Files selected for processing (19)

• whitenoise-mac/ContentView.swift
• whitenoise-mac/Core/MarmotClient.swift
• whitenoise-mac/Core/WorkspaceState+Account.swift
• whitenoise-mac/Core/WorkspaceState+Media.swift
• whitenoise-mac/Core/WorkspaceState+NewChat.swift
• whitenoise-mac/Core/WorkspaceState+Timeline.swift
• whitenoise-mac/Core/WorkspaceState.swift
• whitenoise-mac/Localizable.xcstrings
• whitenoise-mac/Models/MarkdownDisplayModel.swift
• whitenoise-mac/Models/MessengerModels.swift
• whitenoise-mac/Views/ComposerViews.swift
• whitenoise-mac/Views/EmojiPicker.swift
• whitenoise-mac/Views/MarkdownMessageView.swift
• whitenoise-mac/Views/MessageMediaViews.swift
• whitenoise-mac/Views/MessengerShellView.swift
• whitenoise-mac/Views/SettingsViews.swift
• whitenoise-mac/emoji.json
• whitenoise-macTests/PureValueTests.swift
• whitenoise-macTests/whitenoise_macTests.swift

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch mac-chat-parity

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[stage-review]

Ready to review this PR? Stage has broken it down into 7 individual chapters for you:

	Title
1	Add localized day separators to timeline
2	Implement content-sized bubbles and inline metadata
3	Refine reply navigation and reaction controls
4	Add searchable categorized emoji picker
5	Implement message editing in composer
6	Reuse existing direct conversations
7	Harden profile refresh and account actions

_{Chapters generated by Stage for commit 2670828 on Jul 17, 2026 4:05pm UTC.}