Implement unified API standard v1.0 across backend and frontend, enhancing error handling, response formatting, and monitoring capabilities. Refactor viewsets for consistent CRUD operations and introduce API Monitor for endpoint health checks. Update migrations to ensure database integrity and remove obsolete constraints and fields. Comprehensive test suite created to validate new standards and functionality.

backend/igny8_core/auth/migrations/0009_fix_admin_log_user_fk.py

@@ -27,9 +27,17 @@ def forward_fix_admin_log_fk(apps, schema_editor):
     )
     schema_editor.execute(
         """
-        ALTER TABLE django_admin_log
-        ADD CONSTRAINT django_admin_log_user_id_c564eba6_fk_igny8_users_id
-        FOREIGN KEY (user_id) REFERENCES igny8_users(id) DEFERRABLE INITIALLY DEFERRED;
+        DO $$
+        BEGIN
+            IF NOT EXISTS (
+                SELECT 1 FROM pg_constraint 
+                WHERE conname = 'django_admin_log_user_id_c564eba6_fk_igny8_users_id'
+            ) THEN
+                ALTER TABLE django_admin_log
+                ADD CONSTRAINT django_admin_log_user_id_c564eba6_fk_igny8_users_id
+                FOREIGN KEY (user_id) REFERENCES igny8_users(id) DEFERRABLE INITIALLY DEFERRED;
+            END IF;
+        END $$;
         """
     )