[RESOURCE APP][BACKEND][FEAT] Add Pagination to All List Endpoints (Resources, Bookings, Users, Groups)

[saknarajapakshe]

Description

Backend pagination standard for all list endpoints.
Use limit + offset, return items + total.
limit default must be configurable and capped at 50.

This issue can be taken as the parent issue, and developers who implement pagination in each domain can create child issues and continue the implementation.

Acceptance Criteria

• Resource, booking, user, group, and group-member endpoints use same pagination contract
• Parse limit and offset on all list endpoints
• limit default is configurable
• Max limit enforced at 50
• All endpoints return items and total
• Existing domain filters still work
• Invalid values return 400

[prdai]

hi, how can i help for this issue? is there any sort of a plan of execution to implement this over time slowly?