fix: resolve broken migration dependencies and references after company app removal

- Updated migration files to remove references to the old `companies` app and replace them with new app dependencies (`operators` and `manufacturers`).
- Fixed foreign key references in migration files to point to the correct models in the new apps.
- Updated import statements in management commands and test files to reflect the new app structure.
- Completed a thorough validation of the migration system to ensure full functionality and operational status.

rides/migrations/0002_ridemodel.py

@@ -5,7 +5,7 @@ from django.db import migrations, models
 
 class Migration(migrations.Migration):
     dependencies = [
-        ("companies", "0001_initial"),
+        ("manufacturers", "0001_initial"),
         ("rides", "0001_initial"),
     ]
 
@@ -42,7 +42,7 @@ class Migration(migrations.Migration):
                         null=True,
                         on_delete=django.db.models.deletion.SET_NULL,
                         related_name="ride_models",
-                        to="companies.manufacturer",
+                        to="manufacturers.manufacturer",
                     ),
                 ),
             ],