fix(mobile): restore assistant message bottom padding

[juliusmarminge]

What Changed

• Restored assistant message footer and bottom spacing updates when the latest turn settles.
• Simplified thread swipe dismissal so actions commit from the row and restore correctly on failure.
• Removed the shared thread-dismissal coordination layer and updated swipe reset behavior.

Why

Assistant messages could render without their expected bottom padding when the final message update arrived before the turn completed. The swipe dismissal coordination also added complexity and could leave rows in inconsistent states across recycled or duplicated thread lists. The updated row-local flow keeps dismissal and recovery tied to the action that initiated them.

UI Changes

Mobile thread feed spacing and thread swipe interactions changed. No before/after screenshots or video were included.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Note

Fix assistant message bottom padding in ThreadFeed by adding unsettledTurnId to list extra data

Moves the unsettled-turn calculation before listAppearanceData is created and adds unsettledTurnId to the extra-data object and its memo dependencies. This makes the list invalidate unchanged message rows when the latest turn transitions between unsettled and settled states, so footers and spacing reflect turn completion. Risk: ThreadFeed.tsx now repaints affected rows on every turn-state change; verify no unintended scroll or performance regressions.

^{Macroscope summarized c778682.}

Summary by CodeRabbit

• Bug Fixes
  • Thread feed rows now refresh correctly when the latest turn completes or changes state.

[macroscopeapp]

Approvability

Verdict: Approved at c778682

Macroscope's review found this PR approvable — This is a focused one-file mobile rendering fix that refreshes existing message rows when a turn settles, restoring the already-defined assistant footer and bottom spacing. Its runtime impact is limited to a bounded list repaint on turn-state transitions, with no schema, infrastructure, security, billing, or configuration changes.

^{You can add or adjust custom eligibility rules. Learn more.}

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Team

Run ID: 9b56ef65-4109-43c6-808f-2c0b64b5c1dd

📥 Commits

Reviewing files that changed from the base of the PR and between e32dd42 and c778682.

📒 Files selected for processing (1)

• apps/mobile/src/features/threads/ThreadFeed.tsx

Included review availability: 5 reviews are currently available. Your included PR review attempts over the past 7 days set your current allowance at 10 reviews per hour.

---

📝 Walkthrough

Walkthrough

ThreadFeed now includes the latest unsettled turn identifier in list appearance data. The list memo updates when that identifier changes, so visible rows refresh after turn settlement. The duplicate identifier calculation was removed.

Changes

Thread feed refresh

Layer / File(s)	Summary
Propagate unsettled turn state apps/mobile/src/features/threads/ThreadFeed.tsx	ThreadFeed derives unsettledTurnId, passes it through list appearance data, adds it to memo dependencies, and removes the duplicate calculation.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to c7786

This change refreshes visible thread-feed rows when the latest turn settles, restoring final-message spacing without identified merge-readiness risk.

Suggested reviewers: sunkenintime, t3dotgg

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the primary change: restoring assistant message bottom padding on mobile.
Description check	✅ Passed	The description explains the changes and reasons, identifies the UI impact, and completes the relevant checklist items. It does not include the requested before/after screenshots or video for UI and i…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch t3code/fix-assistant-message-bottom-padding

---

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

Thread transfer impact

✅ Thread transfer remains within every enforced ceiling.

Provider	Metric	Main baseline	This PR	Impact	PR ceiling
Codex	Total thread wire	13.6 KiB	13.6 KiB	+4 B (+0.0%)	15.1 KiB	✅
Codex	Thread snapshot wire	7.0 KiB	7.1 KiB	+7 B (+0.1%)	7.3 KiB	✅
Codex	Live turn WebSocket wire	6.6 KiB	6.6 KiB	−3 B (−0.0%)	7.8 KiB	✅
Codex	Live turn WebSocket decoded	57.1 KiB	57.1 KiB	0 B (0.0%)	66.4 KiB	✅
Codex	Live turn messages	10	10	0 (0.0%)	21	✅
Claude	Total thread wire	13.6 KiB	13.6 KiB	+18 B (+0.1%)	15.1 KiB	✅
Claude	Thread snapshot wire	7.0 KiB	7.0 KiB	+2 B (+0.0%)	7.3 KiB	✅
Claude	Live turn WebSocket wire	6.5 KiB	6.5 KiB	+16 B (+0.2%)	7.8 KiB	✅
Claude	Live turn WebSocket decoded	57.8 KiB	57.8 KiB	+44 B (+0.1%)	66.4 KiB	✅
Claude	Live turn messages	8	9	+1 (+12.5%)	21	✅

Baseline: e32dd42 · PR result: c778682 · Source CI: success

Scenario and decoded snapshot size

10 historical turns, 5 command tools per turn, 878.9 KiB retained MCP result per historical turn, and a 1.05 MiB retained result in the measured turn.

• Codex decoded thread snapshot: 113.9 KiB
• Claude decoded thread snapshot: 114.6 KiB

Updated in place by a trusted workflow. PR artifacts are strictly validated and never executed.