fix(onboarding): add some fixes

[RemiBonnet]

Summary

Warning: missing credit card field tokenization, I need to do it in a second PR

• Add last element to be iso with current version
• Add Pylon in the /organisation views
• Add "create organisation" flow
• Fix breadcrumb link (slack)

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)
• I reviewed and executed locally any AI-assisted code

[codecov]

Codecov Report

❌ Patch coverage is 32.89474% with 102 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (new-navigation@c8c7313). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...rd-modal-feature/add-credit-card-modal-feature.tsx	0.00%	51 Missing ⚠️
...on-restriction/use-cluster-creation-restriction.ts	0.00%	13 Missing ⚠️
...hooks/src/lib/use-support-chat/use-support-chat.ts	0.00%	10 Missing ⚠️
.../cluster-creation-flow/cluster-new/cluster-new.tsx	75.67%	7 Missing and 2 partials ⚠️
.../src/lib/onboarding-project/onboarding-project.tsx	57.14%	8 Missing and 1 partial ⚠️
...ding/feature/src/lib/step-project/step-project.tsx	42.85%	4 Missing ⚠️
...oks/use-edit-billing-info/use-edit-billing-info.ts	0.00%	2 Missing ⚠️
...lib/hooks/use-create-project/use-create-project.ts	0.00%	2 Missing ⚠️
...tings-billing-summary/settings-billing-summary.tsx	0.00%	0 Missing and 1 partial ⚠️
.../lib/settings-danger-zone/settings-danger-zone.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##             new-navigation    #2601   +/-   ##
=================================================
  Coverage                  ?   44.52%           
=================================================
  Files                     ?     1084           
  Lines                     ?    22418           
  Branches                  ?     6554           
=================================================
  Hits                      ?     9982           
  Misses                    ?    10669           
  Partials                  ?     1767           

Flag	Coverage Δ
unittests	44.52% <32.89%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[TheoGrandin74]

Some feedbacks:

• A bit unrelated, but when I deleted my org (the only one), I'm redirected to a 404 page -> I should probably just be redirected to the login page

- I'm not redirected to my newly created organization on first creation. Sequence is [clicking on create org] -> [logout] -> [toast "org created] -> [redirected to project onboarding step] - When user has dx_auth=true, he can't access the personalize step and therefore can't go back to previous step/disconnect when on the project step - Here just make sure the max-height match the max-height we have on the project/env/services dropdown