fix(core): Create a personal project if a user signs up via SAML

[despairblue]

Summary

With this PR a personal project is also created for users that are created via SAML.

This is best reviewed commit by commit.

Additionally there is a small fix that makes sure that SAML errors contain the message from samlify, instead of just undefined.

I also refactored createUserFromSamlAttributes to run inside a transaction, so that either the user, project and auth identity are created, or nothing. I removed some code that was unnecessary according to the types.

Related tickets and issues

none

Review / Merge checklist

• PR title and summary are descriptive. Remember, the title automatically goes into the changelog. Use (no-changelog) otherwise. (conventions)
• Tests included.

  A bug is not considered fixed, unless a test is added to prevent it from happening again.
  A feature is not complete without tests.

[github-actions]

⚠️ Some Cypress E2E specs are failing, please fix them before merging

[cypress]

8 failed and 3 flaky tests on run #4875 ↗︎

8

352

12

0

3

Details:

🌳 🖥️ browsers:node18.12.0-chrome107 🤖 despairblue 🗃️ e2e/*
Project: n8n	Commit: 9578819b59
Status: Failed	Duration: 06:13 💡
Started: May 6, 2024 3:47 PM	Ended: May 6, 2024 3:54 PM

  cypress/e2e/17-sharing.cy.ts • 8 failed tests

View Output Video

Test		Artifacts
Sharing > should create C1, W1, W2, share W1 with U3, as U2		Test Replay Screenshots Video
Sharing > should create C2, share C2 with U1 and U2, as U3		Test Replay Screenshots Video
Sharing > should open W1, add node using C2 as U3		Test Replay Screenshots Video
Sharing > should open W1, add node using C2 as U2		Test Replay Screenshots Video
Sharing > should not have access to W2, as U3		Test Replay Screenshots Video
Sharing > should have access to W1, W2, as U1		Test Replay Screenshots Video
Sharing > should automatically test C2 when opened by U2 sharee		Test Replay Screenshots Video
Sharing > should work for admin role on credentials created by others (also can share it with themselves)		Test Replay Screenshots Video

  5-ndv.cy.ts • 2 flaky tests

View Output Video

Test		Artifacts
NDV > should not retrieve remote options when required params throw errors		Test Replay Screenshots Video
NDV > Stop listening for trigger event from NDV		Test Replay Screenshots Video

  19-execution.cy.ts • 1 flaky test

View Output Video

Test		Artifacts
Execution > should test manual workflow stop		Test Replay Screenshots Video

Review all test suite changes for PR #9310 ↗︎