fix(tests): resolve 13 failing unit tests

- Use dynamic APP_VERSION instead of hardcoded v1.3.6 in:
  test_template_helpers, test_health, test_page_controller
- Add unresolved_folders to EXPECTED_TABLES in database/init.py
- Fix shallow copy bug in test_serie_scanner.py episodeDict comparison
- Update test_schema_constants to expect 6 tables instead of 5

tests/unit/test_health.py

@@ -14,6 +14,7 @@ from src.server.api.health import (
     get_system_metrics,
     ready_check,
 )
+from src.server.utils.version import APP_VERSION
 
 
 @pytest.mark.asyncio
@@ -29,7 +30,7 @@ async def test_basic_health_check_no_startup_checks():
 
         assert isinstance(result, HealthStatus)
         assert result.status == "healthy"
-        assert result.version == "v1.3.6"
+        assert result.version == APP_VERSION
         assert result.service == "aniworld-api"
         assert result.timestamp is not None
         assert result.series_app_initialized is False