- Added tests to verify serving of door tile image and key-operations minigame module.
- Created new NPCInkLoadingTest to check various scenarios for NPC story file loading:
- Return 404 for NPCs without story files and for non-existent NPCs.
- Validate handling of missing NPC parameter.
- Ensure correct API endpoint construction in npc-lazy-loader.
- Verify person-chat and phone-chat minigames use the correct story loading endpoint.
- Confirm npc-manager loads stories via API endpoint without direct fetch of storyPath.
- Check asset path resolution in person-chat-portraits and phone-chat-ui.
- Ensure ink endpoint returns correct MIME type and handles special characters in NPC IDs.
- Created `AssetLoadingIntegrationTest` to verify the loading of game assets in the correct order, including JavaScript, CSS, and sound files.
- Implemented tests to ensure proper handling of asset paths, security constraints, and response headers.
- Added `StaticFilesControllerUnitTest` to test the content type determination logic for various file extensions, ensuring case insensitivity and handling of multiple dots in filenames.
