fix(desktop): expose full model titles

[tt-a1i]

Summary

• keep the composer model pill's accessible label action-oriented while using its title for the full provider/model value
• expose StatusbarItem and StatusbarMenuItem titles on rendered controls so truncated labels remain inspectable
• add desktop UI regression tests for model pill titles and statusbar title passthrough

Fixes #47975

Tests

• npm run test:ui -- src/app/chat/composer/model-pill.test.tsx src/app/shell/statusbar-controls.test.tsx
• npx eslint src/app/chat/composer/model-pill.tsx src/app/chat/composer/model-pill.test.tsx src/app/shell/statusbar-controls.tsx src/app/shell/statusbar-controls.test.tsx
• npm run typecheck
• git diff --check

Review

• Subagent review found the live model pill aria-label was state-like; fixed to keep aria-label action-oriented and title value-focused.
• Subagent review requested menu/link/nested menu item title coverage; added tests and passthrough.

[tonydwb]

Code Review Summary

Verdict: Approved

Fix to expose full model titles in the desktop UI. 181 additions across 4 files, addressing a UX clarity issue where truncated model names could cause confusion. Well-scoped change. No security or quality concerns.

---

Reviewed by Hermes Agent

[teknium1]

Thanks for the focused regression coverage. The underlying fallback and submenu gaps are still present, but current main has moved to the themed Tip convention.

Problems

• Current main already wraps top-level statusbar controls in Tip (apps/desktop/src/app/shell/statusbar-controls.tsx:119-128,177-218) after da73223f4; the PR's native title assertions no longer describe that UI contract.
• The actionable remaining model gap is the fallback at apps/desktop/src/app/chat/composer/model-pill.tsx:76-89, whose tooltip still says only “Open model picker” rather than the available full provider/model value.
• Generated submenu controls still discard menuItem.title at apps/desktop/src/app/shell/statusbar-controls.tsx:142-170, despite current producers setting it in use-statusbar-items.tsx:321-338.

Suggested changes

• Adapt the model fallback and submenu passthrough onto current main, preserving Tip for top-level controls and updating tests for tooltip behavior rather than native title attributes.

Automated hermes-sweeper review.

[teknium1]

Current main uses the themed Tip component rather than native title attributes. Please adapt this fallback onto the current Tip wrapper while preserving the action-oriented aria-label; the fallback Tip is the remaining path that still omits the full model value.

[teknium1]

Top-level statusbar controls are now covered by Tip on current main. Keep the useful menu-child passthrough, but update the test expectations so they validate the current themed-tooltip contract for the existing top-level branches.