docs: Add documentation how to delete a T4C project

docs/user/docs/tools/capella/teamforcapella/project-management/activate-t4c-administration-guide.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/add-new-cdo-session.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/delete-t4c-project.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/find-out-repository-host.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/open-cdo-session.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/open-cdo-transaction.png.license

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+SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+SPDX-License-Identifier: Apache-2.0

docs/user/docs/tools/capella/teamforcapella/project-management/project-management.md

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+<!--
+ ~ SPDX-FileCopyrightText: Copyright DB Netz AG and the capella-collab-manager contributors
+ ~ SPDX-License-Identifier: Apache-2.0
+ -->
+
+# TeamForCapella project management
+
+This page describes how to manage T4C projects in T4C repositories. It does not
+cover the management of T4C repositories. For the management of T4C
+repositories, refer to the
+[TeamForCapella repository management](../repository-management.md) guide.
+
+## Create a new TeamForCapella project
+
+1. Make sure that you have a T4C repository available. If not, refer to the
+   [TeamForCapella repository management](../repository-management.md) guide.
+1. Create an empty Capella project in your workspace. Then, export it to the
+   T4C repository. For more information, refer to the
+   [TeamForCapella project export](../export/export-to-t4c.md) guide.
+
+## Delete a TeamForCapella project
+
+!!! warning
+
+    To delete a TeamForCapella project, you have to be global administrator in Collaboration Manager.
+
+<!-- prettier-ignore -->
+1. Open a persistent Capella session and connect to it.
+1. Enable the TeamForCapella administration capability: <br /> `Window` >
+   `Preferences` > `General` > `Capabilities`:
+   ![Activate TeamForCapella administration capabilities](./activate-t4c-administration-guide.png)
+   Then close the dialog.
+1. Open the Capella search and search for `CDO Sessions (CDO)` and open it.
+1. Add a new CDO connection:
+   ![Add a new CDO connection](./add-new-cdo-session.png).
+1. Enter the connection string for the TeamForCapella server. There two ways to
+   find it out. Make sure that the host is prefixed with `tcp://`.
+
+    1. Global administrators can navigate to `Profile` > `Settings` >
+        `Model sources` > `TeamForCapella` > Select the instance > `Host`.
+    1. Project managers can use the TeamForCapella connection flow described in
+        the [Connect to a TeamForCapella repository](/sessions/flows/t4c.md)
+        guide. In the `Connect to Shared Project` dialog, select the repository,
+        expand "Connection information" and copy the "Repository host".
+        ![Find out T4C server host](./find-out-repository-host.png)
+
+1. Enter the repository name and confirm with "Ok".
+    ![Open CDO session](./open-cdo-session.png)
+1. Open a CDO session transaction:
+    ![Open a CDO transaction](./open-cdo-transaction.png)
+1. Expand the transaction, select the project to delete, right click, and select "Delete...":
+    ![Delete a T4C project](./delete-t4c-project.png)
+1. Confirm the deletion with "Ok" and wait until the transaction is finished.
+   The can take a few minutes.

docs/user/mkdocs.yml

@@ -64,6 +64,7 @@ nav:
               - Import a model from TeamForCapella: tools/capella/teamforcapella/import/import-from-t4c.md
               - Export a model to TeamForCapella: tools/capella/teamforcapella/export/export-to-t4c.md
               - TeamForCapella repository management: tools/capella/teamforcapella/repository-management.md
+              - TeamForCapella project management: tools/capella/teamforcapella/project-management/project-management.md
               - Update a TeamForCapella based model: tools/capella/teamforcapella/update.md
           - Git:
               - Working with Git: tools/capella/working-with-git.md