EW-998-doc added documentations for sync console (#5254)

* EW-998-doc added documentations for sync console

README.md

@@ -19,6 +19,11 @@ There is also some old documentation in the server code /apps/server/doc/*.md.
 
 Note that not all the .md file here are up to date.
 
+## NestJS Console Applications
+
+### Sync console
+> Find the [Documentation](./apps/server/src/infra/sync/console/README.md) here.
+
 
 ## Feathers application
 

apps/server/src/infra/sync/console/README.md

@@ -0,0 +1,22 @@
+# Sync console
+This is a console application that allows you to start the synchronization process for different sources.
+
+## Usage
+To start the synchronization process, run the following command:
+```bash
+npm run nest:start:console sync run <target>
+```
+
+Where `<target>` is the name of the system you want to start the synchronization for. The currently available systems are:
+- `tsp` - Synchronize Thüringer schulportal.
+
+If the target is not provided, the synchronization will not start and the available targets will be displayed in an error message.
+```bash
+{
+    message: 'Either synchronization is not activated or the target entered is invalid',  
+    data: { enteredTarget: 'tsp', availableTargets: { TSP: 'tsp' }}
+}
+```
+
+## TSP synchronization
+The TSP synchronization is controlled with a feature flag  `FEATURE_TSP_SYNC_ENABLED`. This is now set to `false`.