chore: New Builder Auth

[istarkov]

Description

Full track

https://github.com/webstudio-is/webstudio-saas/issues/317#issuecomment-2289241819

So thoughts about session
https://github.com/webstudio-is/webstudio-saas/issues/317#issuecomment-2314515772

Some explanations what is fixed and how
https://github.com/webstudio-is/webstudio-saas/issues/317#issue-2465048823

Next PR:

• - Old share links auto redirect
• - Try make better error message having that current PR will logout all users.

Steps for reproduction

1. Login using google login or dev login try to open projects on dahsboard, create new, clone delete etc.
2. Try to open projects on dahboard, see each is on it's own domain and work
3. Try to open project link (without share token) with other user - should fail.
4. Try publish/clone any links and operations.
5. Share project from userA:

• try to open it with other userB
  • see userB is not logged in to that project
  • try to get using fetch from console anything about userB or userA i.e rest etc endpoints on apps.webstudio.is domain
• try to open incognito, check it works.

6. Open few project, then logout from dashboard, reload project page

• See login page
• Try to login as same uer - see it works
• Or try to login as another user - see auth error

Code Review

• hi @kof, I need you to do
  • conceptual review (architecture, feature-correctness)
  • detailed review (read every line)
  • test it on preview

Before requesting a review

• made a self-review
• added inline comments where things may be not obvious (the "why", not "what")

Before merging

• tested locally and on preview environment (preview dev login: 5de6)
• updated test cases document
• added tests
• if any new env variables are added, added them to .env file

[istarkov]

Tests:

1. Login via google
2. Create new Project, created, Im redirected to a new project.
3. Clone project using project menu. Cloned/redirected.
4. Edit text - working
5. Create new page and links - preview working.
6. Publish - working
7. create custom domain - working, publish working https://hello.poke-method.work/
8. goto dahsboard
9. Delete - working
10. clone template working - got error on canvas Cannot read properties of undefined (reading 'get') (Same on Main)
11. clone anouther template - Sheet error - (Same on main)