Added link to acrtivate docs, restored the default command

Author: YuriiMotov

frontend/README.md

@@ -76,9 +76,15 @@ But it would be only to clean them up, leaving them won't really have any effect
 
 ### Automatically
 
-* Activate the backend virtual environment.
+* [Activate](../backend/README.md#general-workflow) the backend virtual environment.
 * From the top level project directory, run the script:
 
+```bash
+bash ./scripts/generate-client.sh
+```
+
+**Alternatively**, to ensure the virtual environment is used even if it’s not activated, run:
+
 ```bash
 VIRTUAL_ENV=./backend/.venv uv run bash scripts/generate-client.sh
 ```