fix(alerts): update alert edition condition

[rmnbrd]

Summary

Issue: Following #2606, we've seen that the same fix needed to be applied to alert edition modal.

Screenshots / Recordings

Testing

• Changes tested locally in the relevant Console's pages and Storybooks
• yarn test or yarn test -u (if you need to regenerate snapshots)
• yarn format
• yarn lint

PR Checklist

• I followed naming, styling, and TypeScript rules (see .cursor/rules)
• I performed a self-review (diff inspected, dead code removed)
• I titled the PR using Conventional Commits with a scope when possible (e.g. feat(service): add new Terraform service) - required for semantic-release
• I only kept necessary comments, written in English (watch for useless AI comments)
• I involved a designer to validate UI changes if I am not a designer
• I covered new business logic with tests (unit)
• I confirmed CI is green (Codecov red can be accepted)
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[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 41.08%. Comparing base (c48b467) to head (dc40980).
⚠️ Report is 3 commits behind head on staging.

Files with missing lines	Patch %	Lines
...erting-edit-feature/page-alerting-edit-feature.tsx	0.00%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (c48b467) and HEAD (dc40980). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (c48b467)	HEAD (dc40980)
unittests	2	1

Additional details and impacted files

@@             Coverage Diff              @@
##           staging    #2613       +/-   ##
============================================
- Coverage    51.75%   41.08%   -10.68%     
============================================
  Files           16       64       +48     
  Lines          199     1385     +1186     
  Branches        53      440      +387     
============================================
+ Hits           103      569      +466     
- Misses          79      650      +571     
- Partials        17      166      +149     

Flag	Coverage Δ
unittests	41.08% <0.00%> (-10.68%)	⬇️

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[Copilot]

Pull request overview

This PR updates the alert editing page logic to mirror the fix introduced in #2606 by allowing HTTP-route-based services (Envoy/HTTPRoute) to satisfy the “HTTP metrics can be edited” prerequisite, not only ingress-based services.

Changes:

• Update the submit guard in the alert edit flow to accept httpRouteName as an alternative to ingressName.

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[RemiBonnet]

🎉 This PR is included in version 1.302.0 🎉

The release is available on GitHub release

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