use WithPagination tool option

[LuluBeatson]

Use WithPagination() tool option consistently for tools with pagination.

Affected tools:

• Actions
  • list_workflow_jobs
  • list_workflow_run_artifacts
  • list_workflow_runs
  • list_workflows
• Issues:
  • get_issue_comments

⚠️ This change also means the per_page argument has been renamed to perPage in the affected tools. Now perPage is used across the server.

This PR does not add pagination to any tools previously without pagination

[Copilot]

Pull Request Overview

This PR refactors several GitHub tools to use a unified WithPagination() helper and renames the pagination parameter from per_page to perPage across the server interfaces.

• Replace individual mcp.WithNumber("page") & mcp.WithNumber("per_page") calls with WithPagination()
• Update handler logic to call OptionalPaginationParams and use pagination.page/pagination.perPage
• Rename all occurrences of per_page to perPage in tests and documentation

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pkg/github/issues_test.go	Updated test assertions to expect perPage instead of per_page
pkg/github/issues.go	Swapped explicit page/per_page parameters for WithPagination() and OptionalPaginationParams
pkg/github/actions_test.go	Updated tests for workflows and artifacts to check perPage
pkg/github/actions.go	Refactored all Actions tools to use WithPagination()
README.md	Renamed parameters and updated descriptions for pagination flags

Files not reviewed (1)

• pkg/github/toolsnaps/get_issue_comments.snap: Language not supported

Comments suppressed due to low confidence (2)

README.md:482

• [nitpick] Nested list items in Markdown currently use - -, which may not render correctly; consider using two-space indentation followed by a single hyphen for nested bullets to ensure proper formatting.

  - `perPage`: Results per page for pagination (min 1, max 100) (number, optional)

README.md:481

• [nitpick] Consider adding the default values (e.g., page=1, perPage=30) to these parameter descriptions so that users know the defaults applied by OptionalPaginationParams.

  - `page`: Page number for pagination (min 1) (number, optional)