Add logging to capture user email upon successful login

[gillespi314]

Issue #7888

Checklist for submitter

If some of the following don't apply, delete the relevant line.

• [x] Changes file added for user-visible changes (in changes/ and/or orbit/changes/).
• ~~Documented any API changes (docs/Using-Fleet/REST-API.md or docs/Contributing/API-for-contributors.md)~~
• ~~Documented any permissions changes~~
• ~~Input data is properly validated, SELECT * is avoided, SQL injection is prevented (using placeholders for values in statements)~~
• ~~Added support on fleet's osquery simulator cmd/osquery-perf for new osquery data ingestion features.~~
• [x] Added/updated tests
• [x] Manual QA for all new/changed functionality

[cypress[bot]]

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Test summary

208 • 0 • 0 • 0 • 1

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Run details

Project	Fleet
Status	Passed
Commit	3f8bd6d5d9 ℹ️
Started	Sep 27, 2022 6:52 PM
Ended	Sep 27, 2022 7:07 PM
Duration	15:12 💡
OS	Linux Ubuntu - 20.04
Browser	Electron 94

View run in Cypress Dashboard ➡️

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Flakiness

	cypress/integration/premium/teamflow.spec.ts		1
1	Teams flow (seeded) > Manage schedules page > adds a query to team schedule

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[codecov-commenter]

Codecov Report

Base: 60.71% // Head: 60.71% // Increases project coverage by +0.00% :tada:

Coverage data is based on head (1d73302) compared to base (f7b341c). Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7927   +/-   ##
=======================================
  Coverage   60.71%   60.71%           
=======================================
  Files         437      437           
  Lines       41778    41778           
=======================================
+ Hits        25364    25367    +3     
+ Misses      14015    14013    -2     
+ Partials     2399     2398    -1     

Impacted Files	Coverage Δ
server/contexts/logging/logging.go	50.00% <ø> (ø)
server/service/sessions.go	74.10% <100.00%> (+0.66%)	:arrow_up:

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[gillespi314]

this works perfectly for user/password login but it doesn't work for SSO, is this expected?

Good eye! I was wondering the same and need to follow up with the team on their logging expectations around SSO. I'm planning to open an issue to track SSO logging separately.