## OVERVIEW
High-complexity controller layer: 17 controllers wired to usecases, router groups, and config.

## WHERE TO LOOK
The 17 controller files:
- activity_logs_controller.go
- auth_controller.go
- backbone_controller.go
- cable_connections_controller.go
- count_assets_controller.go
- creatin_admin.go
- device_details.go
- device_inspections_controller.go
- devicePort_controller.go
- devices_controller.go
- fishbone_controller.go
- nearest_device_controller.go
- olt_controller.go
- tower_controller.go
- user_management_controller.go
- user_registration.go
- users_controller.go

Pattern: struct {Entity}Controller, New{Entity}Controller(usecase, routerGroup, config), Route() method.

## ANTI-PATTERNS
- Put business logic in controllers; delegate to usecases
- Access DB directly in controllers
- Skip input validation; use validator
- Duplicate route wiring