chore: Add testing configuration and clean up duplicate files

- Added pytest configuration and test suite
- Added TypeScript configuration for both frontend apps
- Removed duplicate migration files from backend/backend/migrations/
- Enhanced project structure for better testing and development"

backend/pytest.ini

@@ -0,0 +1,22 @@
+[tool:pytest]
+testpaths = tests
+python_files = test_*.py
+python_functions = test_*
+python_classes = Test*
+asyncio_mode = auto
+addopts = 
+    -v
+    --tb=short
+    --strict-markers
+    --disable-warnings
+    --color=yes
+    --durations=10
+markers =
+    slow: marks tests as slow (deselect with '-m "not slow"')
+    integration: marks tests as integration tests
+    unit: marks tests as unit tests
+    auth: marks tests related to authentication
+    db: marks tests that require database
+filterwarnings =
+    ignore::DeprecationWarning
+    ignore::PendingDeprecationWarning