feat(clusters): add clusters list to breadcrumb navigation

[TheoGrandin74]

Motivation

Make it easier to return to the organization’s cluster list while viewing a
specific cluster, using the Console’s existing breadcrumb navigation pattern.

Description

• Add a Clusters breadcrumb immediately before the current cluster breadcrumb.
• Link it to /organization/$organizationId/clusters for the active organization.
• Keep the current-cluster breadcrumb, avatar, and cluster switcher unchanged.
• Replace the separate Back to clusters overview link with breadcrumb navigation.

Testing

• yarn nx format:check --files='apps/console/src/routes/_authenticated/organization/$organizationId/cluster/$clusterId/overview.tsx,apps/console/src/app/components/header/breadcrumbs/breadcrumbs.tsx'
• yarn nx lint console
• git diff --check

[nx-cloud]

View your CI Pipeline Execution ↗ for commit e9100a5

Command	Status	Duration	Result
nx run console:build --parallel=3 --configurati...	✅ Succeeded	2m 36s	View ↗
nx affected --target=test --parallel=3 --config...	✅ Succeeded	<1s	View ↗
nx affected --target=lint --parallel=3	✅ Succeeded	<1s	View ↗
nx-cloud record -- yarn nx format:check	✅ Succeeded	3s	View ↗

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☁️ Nx Cloud last updated this comment at 2026-07-21 14:16:52 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.02%. Comparing base (9bde182) to head (e9100a5).
⚠️ Report is 1 commits behind head on staging.

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #2831      +/-   ##
===========================================
+ Coverage    45.94%   47.02%   +1.08%     
===========================================
  Files          654     1265     +611     
  Lines        16068    27150   +11082     
  Branches      4790     7913    +3123     
===========================================
+ Hits          7382    12768    +5386     
- Misses        7412    12205    +4793     
- Partials      1274     2177     +903     

Flag	Coverage Δ
unittests	47.02% <ø> (+1.08%)	⬆️

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