feat: enhance physics and map modules with Box2D integration and documentation updates

- Updated the physics module to include Box2D support, enabling management of physics bodies and collision events.
- Enhanced the map module to support tile layers and improved hot-reload functionality for tilemaps.
- Updated documentation to reflect the new features in the physics and map systems, including usage examples and API references.
- Modified CMakeLists.txt to include new modules for physics and font management, ensuring proper build configurations.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/modules/map/TileSystem.h

@@ -0,0 +1,24 @@
+#pragma once
+
+namespace eve::graphics {
+class Graphics;
+}
+
+namespace eve::map {
+
+/** Draws all visible TileLayer entities via Graphics batch path (UV atlas quads). */
+class TileRenderSystem {
+public:
+    static void render(graphics::Graphics *gfx);
+};
+
+/**
+ * Polls bound config files (Resource.path) and hot-reloads when modtime changes.
+ * Returns number of layers reloaded.
+ */
+class TileConfigSystem {
+public:
+    static int poll();
+};
+
+}  // namespace eve::map