Notify users about expiring git PATs and expose PATs in admin panel (#33802)

* Allow admin access to user PATs

* Tests for new screen in admin panel

* Adding error for invalid token and way to parse error for OAuth 2

* Git bridge handles expired PAT

* Script for alerting on close to expiry and expired git tokens

* Refactoring and simplifying

* Updating email templates to match agreed docs

* tweak to email subject to include Overleaf

* Allowing dry run in scripts and general tidy up

* removing redundant tests and dry running script

* Fixing CI errors

* Adding new tab to admin test expectation

* Address PR feedback on oauth2-server changes

- Replace ad-hoc overleafErrorCode prop with a TokenExpiredError subclass
- Collapse listTokens/listTokensForAdmin into a single hook

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* Adding cron definitions for alerting on expiring git pat

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
GitOrigin-RevId: 69b9fd901a201592a580c69abe7bd7d603e85d3a

server-ce/test/admin.spec.ts

@@ -245,6 +245,7 @@ describe('admin panel', function () {
           'Deleted Projects',
           'Audit Log',
           'Sessions',
+          'Personal Access Tokens',
         ]
         cy.findAllByRole('tab').should('have.length', tabs.length)
         tabs.forEach(tabName => {