Yii2 API and client area

Problem: Client area and API with roles, plus a link to the existing CRM.
Solution: Yii2 REST, access control, cabinet for key flows, CRM integration.
Stack: Yii2, PHP, REST API, MySQL
Result: Cabinet in production; the client team works without manual CRM re-entry.

We needed a working contour: an API for the cabinet, user roles and a careful integration with the CRM the client already ran.

Built a Yii2 backend: auth, entities, permissions, endpoints for the frontend. The cabinet covered core flows — requests, statuses, history. CRM wired via API so data is not copied by hand.

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