[PM-10321/PM-10322] Add Endpoints for Deleting Single and Multiple Organization-Managed Users

[r-tome]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-10321
https://bitwarden.atlassian.net/browse/PM-10322

📔 Objective

This pull request introduces two new endpoints for managing the deletion of organization-managed users:

1. Single User Deletion Endpoint {id}/delete-account: Allows for the removal and data deletion of an individual user identified by organizationUserId within a specified organization (organizationId).
2. Bulk User Deletion Endpoint /delete-account: Provides functionality to remove multiple users and delete their associated data in one operation, given a list of organizationUserIds for a specified organization (organizationId).

Both endpoints leverage the new command created on #4726

⏰ 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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.82%. Comparing base (c147f11) to head (cef4d9a).

Additional details and impacted files

@@                                       Coverage Diff                                        @@
##           ac/pm-10316/add-ideletemanagedorganizationuseraccountcommand    #4727      +/-   ##
================================================================================================
+ Coverage                                                         41.78%   41.82%   +0.04%     
================================================================================================
  Files                                                              1290     1291       +1     
  Lines                                                             61174    61207      +33     
  Branches                                                           5638     5644       +6     
================================================================================================
+ Hits                                                              25562    25602      +40     
+ Misses                                                            34409    34402       -7     
  Partials                                                           1203     1203              

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[github-actions]

Checkmarx One – Scan Summary & Details – cff5b554-8183-4724-a3d5-5eb9a480c477

New Issues

Severity	Issue	Source File / Package	Checkmarx Insight
	CSRF	/src/Api/AdminConsole/Controllers/OrganizationUsersController.cs: 546	Attack Vector