feat: add initial implementation of ECS architecture and systems

- Introduced a minimal Entity-Component-System (ECS) framework in `ecs.ts` with basic entity management and component handling.
- Created `World` class to manage entities and components, including methods for creating, adding, retrieving, and removing components.
- Implemented unit tests for the `World` class in `ecs.test.ts` to ensure functionality.
- Developed input handling with `InputSystem` to capture keyboard events.
- Added `PhysicsSystem` for movement and collision detection.
- Created `RenderSystem` to handle drawing entities on the canvas.
- Set up a main game loop in `main.ts` to integrate systems and manage game state.
- Added SVG icons and images for UI elements.
- Included CSS styles for layout and theming.
- Configured TypeScript settings in `tsconfig.json` for project compilation.

Co-authored-by: Copilot <copilot@github.com>

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Vite
+.vite/
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Environment
+.env
+.env.local
+.env.*.local