feat(wip): Update entities and adopt a proper repository workflow for trip "obtention"

frontend/lib/domain/README.md

@@ -22,3 +22,14 @@ This is required boilerplate for all models. Then, we define the model itself us
 The `*.frozen.dart` and `*.g.dart` are pure boilerplate and should not be touched.
 
 Note that the description of the data will losely follow the capabilities of the backend but does not need to reflect it exactly. That is where the `data` part is for: translating api calls into flutter objects.
+
+To ensure the creation of the boilerplate code, run the following command in your terminal:
+
+```bash
+flutter pub run build_runner build --delete-conflicting-outputs
+```
+or interactively:
+```
+dart run build_runner watch -d
+```
+