[luannn010]

Summary

• Align the native44px transparent title row with full-height sidebar/content surfaces and remove its centered app title.
• Keep scrolling content below caption controls, preserve the editor portal, and reveal focused toolbar actions after resizing.
• Implements window-title-row / layout-desktop, design95bd47e899600c0f038a7d4622a40cfc61d063e2. Depends on feat(navigation): add accessible sidebar resizing #54.

Testing

• 66 focused tests, TypeScript and production build passed; independent lead source review accepted.
• Rendered browser geometry, menus, scrollport, portal identity and module checks passed with real WASM/IndexedDB and an explicitly simulated native bridge.
• Clean native build and nine Rust tests passed. Actual Windows startup, collapse, drag-resize, keyboard/reset, maximize/restore, Study, unopened Journal gate, Clips, Settings and three themes checked.
• FPS, snap and whole-frame fidelity remain unqualified.
• Risk: shell layout only. Revert this PR to undo; no stored-data migration.

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, native build diagnosis and independent source review); gpt-6.1-terra (bounded browser module verification).
• Effort: medium.
• Human role: requested design audit, fixes, local Windows build and focused PR delivery; merge review pending.
• Sources: project-owned design revision95bd47e899600c0f038a7d4622a40cfc61d063e2 and existing Notes source/test contracts. No external implementation copied; existing notices retained.

Checklist

• Works on Windows, macOS and Linux
• Architecture updated for presentation-only layout metadata
• No secrets, profiles, screenshots or build outputs included