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_template_helpers.py

@@ -16,6 +16,7 @@ from src.server.utils.template_helpers import (
     prepare_series_context,
     validate_template_exists,
 )
+from src.server.utils.version import APP_VERSION
 
 
 class TestTemplateHelpers:
@@ -30,7 +31,7 @@ class TestTemplateHelpers:
         assert context["request"] == request
         assert context["title"] == "Test Title"
         assert context["app_name"] == "Aniworld Download Manager"
-        assert context["version"] == "v1.3.6"
+        assert context["version"] == APP_VERSION
 
     def test_get_base_context_default_title(self):
         """Test that default title is used."""