feat: add display of activity logs

[its-gabo]

Overview

Adds an admin-facing activity logs feature end to end:

• new GET /api/activity-logs endpoint with pagination and email, from, to filters
• new activity logs page in the web app with searchable, paginated table rows and expandable log details
• new navigation entry and route access guard for admin/activity-logs
• permission backfill service to ensure tenant roles receive the new activity log read permission
• API schema, generated client types, translations, and e2e coverage for the endpoint

Business Value

Gives administrators a way to audit important system activity, inspect who changed what and when, and narrow results by actor email or date range. This improves traceability, supports support/debugging workflows, and makes permission-related changes safer to roll out across tenants.

Screenshots / Video

Nekorder_2026-04-29_10-29-20.mp4

[github-actions]

🚀 Preview ready

Mails do not leave the preview environment. Database has been seeded with test data. You can access the preview at the following URLs:

List of available services:

Service	URL
Web	https://pr-1460.beta.mentingo.com
Mailhog	https://mailhog-pr-1460.beta.mentingo.com

List of available accounts:

Role	Email	Password
Student	student@example.com	password
Student	student0@example.com	password
Student	student2@example.com	password
Content Creator	contentcreator@example.com	password
Content Creator	contentcreator2@example.com	password
Admin	admin@example.com	password