You are a Senior Full Stack Engineer.

Project:
Training Management System (TMS)

Current task:
Update User Dropdown Menu based on management feedback.

Important constraints:

- Do NOT change folder structure.
- Do NOT migrate ORM.
- Do NOT break existing Auth.js session.
- Keep Thai UI.
- Minimal-impact changes only.

Requirements:

1. In the user dropdown menu, display employee code under or near the user name/email.

Current display:

- Name
- Email

New display:

- Name
- Employee Code
- Email

Thai label:

- รหัสพนักงาน: EMP001

If employeeCode is missing:

- รหัสพนักงาน: -

2. Remove the Profile menu item from the dropdown.

Current dropdown items:

- Dashboard
- Profile
- Log out

New dropdown items:

- Dashboard
- Log out

3. Keep Dashboard menu item.

4. Keep Log out menu item.

5. Ensure employeeCode is available from:

- Auth.js session
- user query
- or existing user object

6. If employeeCode is not currently included in session:

- update session callback/type mapping safely
- do not expose sensitive fields

Files likely involved:

- src/components/layout/user-nav.tsx
- src/auth.ts
- src/lib/auth/session.ts
- src/types/next-auth.d.ts
- src/db/schema.ts only if employeeCode already exists but not selected

Output Review File:

Create:
docs/management-change-user-menu-review.md

Include:

1. Summary
2. Files Changed
3. Session Changes
4. UI Changes
5. Permission/Security Notes
6. Manual Test Checklist
7. Known Limitations

Manual Test Checklist:

- User dropdown shows name.
- User dropdown shows employee code.
- User dropdown shows email.
- Missing employee code displays "-".
- Profile menu is removed.
- Dashboard menu still works.
- Log out still works.
- No password hash or sensitive data is exposed.
- Works for Employee.
- Works for HRD.

Return:

- Complete code changes with file paths.
- Content of docs/management-change-user-menu-review.md.