Implement REST API: Get Permission Metadata

[hassandotcms]

Description

Implement a REST endpoint to retrieve permissions metadata including available permission levels and scopes for building permission UIs.

(This endpoint replaces the legacy DWR/AJAX functionality used in the DotAdmin Users > Permissions tab)

Acceptance Criteria

• GET /api/v1/permissions/metadata endpoint
  • Returns available permission levels that can be combined:
    • READ, WRITE, PUBLISH, EDIT_PERMISSIONS, CAN_ADD_CHILDREN
  • Returns available permission scopes for categorizing permissions:
    • individual, sites, folders, containers, templates, templateLayouts, pages, links, content, structures, categories, rules
  • No parameters required
  • Returns structured metadata for building permission UIs
  • Returns 500 for internal errors
  • Follows existing ResponseEntityView wrapper pattern

Priority

None

Additional Context

No response

[github-actions]

PRs linked to this issue

• Implement rest api to get permission metadata [#33394] by @hassandotcms