WIP for activity modeling and migration.

backend/src/test/resources/application-test.yml

@@ -0,0 +1,10 @@
+spring:
+  datasource:
+    url: jdbc:postgresql://localhost:5432/your_test_database
+    username: test_user
+    password: test_password
+  
+  flyway:
+    enabled: true
+    clean-disabled: false  # Allow clean in tests
+    locations: classpath:db/migration