Replace blank account name with null

[david-livefront]

🎟️ Tracking

N/A

📔 Objective

This PR replaces the blank accountName on manually entered TOTP codes with a null.

⏰ 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

[claude]

Claude finished @david-livefront's task —— View job

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Code Review

Overall Assessment: APPROVE

Clean refactoring that correctly replaces empty string with null for manually entered TOTP codes, with corresponding test updates.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.48%. Comparing base (7120eef) to head (fe7b7c5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6158      +/-   ##
==========================================
- Coverage   84.99%   84.48%   -0.52%     
==========================================
  Files         723      839     +116     
  Lines       52742    55065    +2323     
  Branches     7652     7697      +45     
==========================================
+ Hits        44827    46520    +1693     
- Misses       5242     5857     +615     
- Partials     2673     2688      +15     

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[github-actions]

Checkmarx One – Scan Summary & Details – ead9232d-7d15-46f0-bf75-9f0bcfd82449

Great job! No new security vulnerabilities introduced in this pull request

[david-livefront]

Thanks @LRNcardozoWDF & @SaintPatrck