feat(auth): decouple authorization and admin layout

[jescalada]

This PR for #9 builds on top of #7 and #10, making route access more intuitive. All /admin routes have been replaced with /dashboard, and relevant files have been renamed. Actual admin-only routes, such as the list of users, are displayed with the /admin/ prefix. For example: /dashboard/admin/user.

Merging the first two PRs should make this one more manageable! 😃

Unit tests execute the same way as before, and E2E tests have been expanded and amended to work with the new setup.

I also added some quality-of-life features, such as fixing the redirect on login, which had a confusing flow (that was erroring out when logging from the admin/admin account).

When testing, keep in mind that enabling OIDC will make some tests fail. Please set the local auth in proxy.config.json to enabled: true (and openidconnect to enabled: false) to make tests pass. Thank you!

Changelog

• Refactor "admin" layout/routes into "dashboard"
• Fix redirect on login (now redirects to repo list, which requires a logged-in user)
• Fix error handling on repo page
  • Catches GitHub repo retrieval error and makes it more descriptive
• Add new E2E test for basic login flow (with admin/admin account) and redirect
• Fix login command
  • Needed to fix the existing repo E2E test which now requires a logged-in user

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 58.29960% with 412 lines in your changes missing coverage. Please review.

Please upload report for BASE (main@83e814b). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
src/proxy/processors/push-action/gitleaks.ts	11.62%	76 Missing ⚠️
src/config/ConfigLoader.ts	62.22%	59 Missing and 9 partials ⚠️
src/config/index.ts	69.42%	42 Missing and 6 partials ⚠️
src/proxy/processors/push-action/preReceive.ts	16.32%	41 Missing ⚠️
src/proxy/index.ts	33.33%	36 Missing and 2 partials ⚠️
src/db/file/repo.ts	50.00%	23 Missing ⚠️
src/db/file/pushes.ts	47.05%	18 Missing ⚠️
src/proxy/processors/push-action/parsePush.ts	48.57%	18 Missing ⚠️
src/db/index.ts	42.85%	11 Missing and 5 partials ⚠️
src/proxy/actions/Action.ts	64.10%	14 Missing ⚠️
... and 16 more

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #13   +/-   ##
=======================================
  Coverage        ?   48.49%           
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  Files           ?       51           
  Lines           ?     2099           
  Branches        ?      242           
=======================================
  Hits            ?     1018           
  Misses          ?     1044           
  Partials        ?       37           

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[jescalada]

PR contents merged in finos#961.