[PM-15160] Create ResellerClientOrganizationSignUpCommand

[r-tome]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-15160

📔 Objective

Extract IOrganizationService.CreatePendingOrganization into a command.

⏰ 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 – dadbbfca-3984-4c39-970c-acae3a8aeb6b

Great job, no security vulnerabilities found in this Pull Request

[codecov]

Codecov Report

Attention: Patch coverage is 98.61111% with 1 line in your changes missing coverage. Please review.

Project coverage is 47.68%. Comparing base (cc07f13) to head (a2ccadb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...in/AdminConsole/Controllers/ProvidersController.cs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5981      +/-   ##
==========================================
+ Coverage   47.62%   47.68%   +0.06%     
==========================================
  Files        1688     1689       +1     
  Lines       74888    74937      +49     
  Branches     6756     6757       +1     
==========================================
+ Hits        35663    35732      +69     
+ Misses      37768    37748      -20     
  Partials     1457     1457              

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud