docs: Add FileStorageContainerTypeReg.Manage.All and CT owner self-service registration

[gnjoseph]

Category

• Content fix
• New article

What's in this Pull Request?

Note: This PR should NOT be merged until the corresponding SPO.Core changes ship. See dependencies below.

Documents the FileStorageContainerTypeReg.Manage.All permission and container type owner self-service registration capability:

• Added FileStorageContainerTypeReg.Manage.All to the Application permissions list
• Added Container type owner self-service registration section documenting:
  • CT owners can register tenant-local container types without SPE Admin
  • Both Manage.All (any app) and Selected (owning app only) scopes supported
  • Requirements: delegated mode, non-guest, tenant toggle enabled
  • PowerShell commands to manage IsSelfServiceContainerTypeRegistrationEnabled tenant setting
• Added FSCTR.Selected removal guidance after container type registration

[learn-build-service-prod]

PoliCheck Scan Report

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[learn-build-service-prod]

Learn Build status updates of commit c2292e0:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/embedded/development/auth.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 35353fa:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/embedded/development/auth.md	✅Succeeded	View

For more details, please refer to the build report.