Fix contrast issues with text-muted and bg-dark classes

- Fixed Bootstrap bg-dark class to use better contrasting color
- Added comprehensive text-muted contrast fixes for various contexts
- Improved dark theme colors for better accessibility
- Fixed CSS inheritance issues for code elements in dark contexts
- All color choices meet WCAG AA contrast requirements

backend/app/__init__.py

@@ -0,0 +1,29 @@
+"""
+UnitForge Application Package
+
+This package contains the main application components:
+- Core unit file functionality (parsing, validation, generation)
+- Template system for common systemd unit configurations
+- FastAPI web application and API endpoints
+- Static file serving and template rendering
+
+The app package is structured as follows:
+- core/: Core business logic and unit file handling
+- api/: API route handlers (if separated from main.py)
+- main.py: FastAPI application entry point
+"""
+
+__version__ = "1.1.0"
+
+from .core.templates import template_registry
+
+# Core exports for easy importing
+from .core.unit_file import SystemdUnitFile, UnitType, ValidationError, create_unit_file
+
+__all__ = [
+    "SystemdUnitFile",
+    "UnitType",
+    "ValidationError",
+    "create_unit_file",
+    "template_registry",
+]