NAS-140306 / 26.0.0-BETA.2 / Unable to save E-Mail options with GMail OAuth (by AlexKarpov98)

[bugclerk]

Testing: see ticket & comment.

Actual changes:

1. Email form fetches config from API when opened from the alerts panel (which passes no data), instead of showing an
   empty/broken form.
2. Save button state fixed — properly enabled after switching from SMTP to Gmail OAuth and completing login, and when
   existing Gmail config is loaded.
3. Port validator re-evaluated on send method change, so switching methods doesn't leave stale validation errors.
4. Alert panel mat-menu z-index — custom OverlayContainer ensures dropdown menus render above the alert panel.
5. Alert panel focus management — tab focus trapping added, focus returns to the alert bell on panel close.
6. Menu items changed from to for semantic correctness (they trigger actions, not navigation to URLs).
7. Removed unused SystemGeneralService dependency.

Preview:

Screen.Recording.2026-03-17.at.13.17.57.mov

Original PR: #13351

[bugclerk]

Jira URL: https://ixsystems.atlassian.net/browse/NAS-140306

[codecov]

Codecov Report

❌ Patch coverage is 52.08333% with 23 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (stable/26@16a8c65). Learn more about missing BASE report.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...ules/layout/admin-layout/admin-layout.component.ts	0.00%	20 Missing ⚠️
...rts-panel/alert-panel-overlay-container.service.ts	50.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             stable/26   #13358   +/-   ##
============================================
  Coverage             ?   86.61%           
============================================
  Files                ?     1872           
  Lines                ?    72027           
  Branches             ?     8400           
============================================
  Hits                 ?    62389           
  Misses               ?     9638           
  Partials             ?        0           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[AlexKarpov98]

ported.

[bugclerk]

This PR has been merged and conversations have been locked.
If you would like to discuss more about this issue please use our forums or raise a Jira ticket.