[luannn010]

Summary

• Match the sidebar account row: actual email, decorative Unicode initial and real New note shortcut. Retain Beta/Local only disclosure.
• Guard global creation against duplicate writes, stale completion/focus, failed saves and newly blocked navigation.
• Implements layout-desktop / layout-narrow, designf610ced1da443b04699137333c1309925092fffa. Depends on fix(desktop): align the native title row with app surfaces #55.

Testing

• 53 focused tests, TypeScript/build and three genuine encrypted browser journeys passed; independent lead review accepted.
• Cover three themes/widths, actual create from Study, dirty-draft refusal, reload, narrow drawer and prior sidebar/title-row regressions.
• Clean Windows build and nine Rust tests passed. Actual native header checked in three themes and at180px minimum; original Light/224 restored, no content writes.
• FPS, complete frames, native create/failure journeys and real account-server qualification remain open.
• Risk: shared create admission changed; no stored-data migration. Revert this PR to undo.

Co-authors

none

AI usage

• Written by hand, with no AI
• Harness and version: Codex desktop, codex-cli 0.160.0; Git/gh, Node, Vitest, Playwright/Chrome, Rust/Tauri and bundled Computer Use.
• Models: gpt-6.1-sol (UI/UX, implementation, tests, integration and independent source review); gpt-6.1-terra (bounded consumer-selector updates); gpt-6-luna (read-only consumer inventory).
• Effort: medium.
• Human role: requested design audit, fixes, local Windows build and focused PR delivery; merge review pending.
• Sources: project-owned design revisionf610ced1da443b04699137333c1309925092fffa and existing Notes source/test contracts. No external implementation copied; existing notices retained.

Checklist

• Works on Windows, macOS and Linux
• Architecture updated for account-header and create admission behavior
• No secrets, profiles, screenshots or build outputs included