[AI] Add client search to lawyer dashboard

[BTheCoderr]

Feature Goal

Add client search to lawyer dashboard

Acceptance Criteria

- [ ] Add search input field to lawyer dashboard
- [ ] Implement fuzzy search API endpoint in backend
- [ ] Filter client list based on search terms
- [ ] Add unit tests for search functionality
- [ ] Ensure responsive design on mobile

Priority

Low (nice to have)

Additional Context

No response

Areas to modify

• Frontend (React components)
• Backend (Python API)
• Database (models/migrations)
• Tests (unit/integration)
• Documentation