feat: add pagination to get items

[vincentdo1]

Implemented as described in the issue and updated smoke tests accordingly.

Closes https://github.com/radicalplatforms/shafa/issues/98.

[github-actions[bot]]

Pull Request Smart Comments Assignee(s): Mark tasks as they are completed. Code Reviewer(s): Ensure all tasks are complete and follow best standards before approving.

• [x] Assigned at least one (1+) experienced code reviewer and notified them requesting a review
• [x] Assigned all contributors as assignees
• [x] Assigned relevant labels that are a subset or related to the parent issue's labels
• [x] Checked that PR description contains a quick summary of work accomplished and uses issue closing words
• [x] Checked that completed tasks in related issue(s) are marked accordingly
• [x] Checked that PR title is descriptive and follows commit message semantics

[vincentdo1]

There should be only one p1.execute() call, don’t review yet