- Created SearchUsers method in UserService with pagination support
- SearchUsers searches by username, email, first_name, and last_name using ILIKE
- Added SearchUsers handler in ProfileHandler with query params (q, page, limit)
- Added GET /users/search route in setupUserRoutes
- Returns paginated results with total count
- Password hashes are excluded from results
Phase: PHASE-2
Priority: P1
Progress: 17/267 (6.4%)