## MODIFIED Requirements

### Requirement: Agent users can view their shop distribution code

The authenticated home page SHALL show a "View my distribution code" shortcut immediately after withdrawal management only when the current user's `user_type` is `3`. The shortcut SHALL use `src/static/icons/分销码.png`. Opening it SHALL use the current user's `shop_id` to retrieve that shop's `distribution_code` from `/api/admin/shops/{shop_id}` and display a QR code encoding the absolute registration URL formed from `VITE_API_BASE_URL`, `/agent-registration`, and the URL-encoded `distribution_code` query parameter. The code SHALL be generated locally and SHALL NOT be sent to a third-party QR service.

#### Scenario: Agent sees and opens the shortcut
- **GIVEN** `/api/auth/me` returns a user with `user_type` `3` and a valid `shop_id`
- **WHEN** the home page displays its quick actions
- **THEN** "View my distribution code" appears immediately after withdrawal management with the supplied distribution-code icon
- **AND** opening it displays a QR code whose decoded value is `${VITE_API_BASE_URL}/agent-registration?distribution_code=${encodeURIComponent(distribution_code)}`

#### Scenario: Non-agent does not see the shortcut
- **GIVEN** `/api/auth/me` returns a user whose `user_type` is not `3`
- **WHEN** the home page displays its quick actions
- **THEN** the distribution-code shortcut is not shown
- **AND** direct navigation to the distribution-code page does not reveal a code

#### Scenario: Shop or distribution code is unavailable
- **GIVEN** an agent opens the distribution-code page
- **WHEN** the current account has no `shop_id`, the shop request fails, or the shop has no `distribution_code`
- **THEN** no QR code is rendered
- **AND** the page explains that the distribution code is currently unavailable