github/main: 36aea583bb
PR head: 3146a7b9ac23bea28459865dc5d677f2ccfad007
main dev: server 16733, web 8693 (stopped before final PR server)
PR dev: server 13773, web 5733
Browser: repository Playwright 1.60.0, /usr/bin/google-chrome

App-created project: /home/user/spacing-project
New worktree base selected: abcdefghij; Start from remote off
main: Fromabcdefghij in composer and thread details
PR: From abcdefghij in composer and thread details
main head span width: 28.765625px; PR: 32.140625px
Both labels retain original title: From abcdefghij
Long branch selection: both heads report data-overflow=true; tail abcdefghij
Switch back to main: both labels read From main; clipPath cleared

App turn: Codex gpt-6.1-sol, low effort, full access
Provider reported branch t3/verify-readme-provider
Provider cwd /home/user/.t3/worktrees/spacing-project/t3-2a5a3984
Provider read README.md and appended provider verification passed
Client displayed one changed file, +1 -0; disk git diff confirmed the added line
Second provider turn created a filename containing an actual newline
Original title retains newline; rendered label replaces it with a space
Both rendered segments have height 16px and white-space: pre
Clicking changed file opened its actual diff containing newline verification
No provider commits or pushes

Blacksmith: vp i
cd apps/web && vp test run src/components/ui/middle-truncate.test.ts src/components/ui/middle-truncate.browser.test.tsx
2 files passed, 6 tests passed (5 unit, 1 chromium browser)
Initial invocation from repo root had the wrong project filter; corrected cwd.
Installed missing remote Chromium prerequisite before successful browser run.
No product code changes.