Update "SSO login email not found" log level to debug

[trmartin4]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-27184

📔 Objective

Changes the level of the SSO login email not found message from error to debug so that it doesn't cause confusino when collecting error messages from console logs for unrelated issues.

📸 Screenshots

Message displayed as shown below, only when isDev()

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – b1462c86-7305-42e8-8db4-5ab478b60bda

New Issues (1)

Checkmarx found the following issues in this Pull Request

Severity	Issue	Source File / Package	Checkmarx Insight
	CVE-2025-13224	Npm-electron-37.7.0	details Recommended version: 39.2.3 Description: Type Confusion in V8 in Google Chrome prior to 142.0.7444.175 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML p... Attack Vector: NETWORK Attack Complexity: LOW ID: dGMUiNbgzBK7p8KvD2KLW%2B0oXrnQ9uwyLXPs%2FbjM73o%3D Vulnerable Package

[claude]

Claude finished @trmartin4's task —— View job

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Code Review Complete

Summary

This PR correctly changes the log level from error to debug for the "SSO login email not found" message. The change is minimal, focused, and appropriately tested.

Findings

No findings - the changes look good.

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Analysis

The changes are appropriate for the stated objective. The "SSO login email not found" scenario is not an error condition - it's an expected state in the normal login flow when SSO email is not present. Logging it as error would indeed cause confusion when reviewing logs for actual errors.

✅ The implementation is correct - both the service and test were updated consistently
✅ The test description on line 71 says "should log error and return early" but this is descriptive of the behavior (logging and early return), not the log level, so it's acceptable
✅ The change aligns with the PR objective and reduces log noise

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.60%. Comparing base (a8d6ad4) to head (2e3a1a5).
⚠️ Report is 44 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17720      +/-   ##
==========================================
- Coverage   41.60%   41.60%   -0.01%     
==========================================
  Files        3553     3553              
  Lines      102390   102390              
  Branches    15366    15366              
==========================================
- Hits        42602    42601       -1     
  Misses      57995    57995              
- Partials     1793     1794       +1     

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