What

Add logout confirmation dialogs for the settings account action and the nexu Official provider action.

Why

Both logout entry points were disconnecting the current nexu account immediately. Adding a confirmation step reduces accidental logout/disconnects.

How

• add a reusable logout confirmation dialog in apps/web/src/pages/models.tsx
• show the dialog before disconnecting from General > Account
• show the dialog before disconnecting from AI Model Providers > nexu Official
• add matching English and Chinese copy
• remove the dialog divider for this confirmation modal only

Affected areas

• Desktop app (Electron shell)
• Controller (backend / API)
• Web dashboard (React UI)
• OpenClaw runtime
• Skills
• Shared schemas / packages
• Build / CI / Tooling

Checklist

• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes
• pnpm generate-types run (if API routes/schemas changed)
• No credentials or tokens in code or logs
• No any types introduced (use unknown with narrowing)

Notes for reviewers

pnpm test was not run because this is a small UI-only change with no logic or API contract changes beyond the existing logout flow.