Add dynamic memory-based asset caching and aggressive loading

- Add MemoryMonitor class for dynamic cache sizing based on available RAM
- Increase terrain load radius to 8 tiles (17x17 grid, 289 tiles)
- Scale worker threads to 75% of logical cores (no cap)
- Increase cache budget to 80% of available RAM, max file size to 50%
- Increase M2 render distance: 1200 units during taxi, 800 when >2000 instances
- Fix camera positioning during taxi flights (external follow mode)
- Add 2-second landing cooldown to prevent re-entering taxi mode on lag
- Update interval reduced to 33ms for faster streaming responsiveness

Optimized for high-memory systems while scaling gracefully to lower-end hardware.
Cache and render distances now fully utilize available VRAM on minimum spec GPUs.

src/core/application.cpp

@@ -4,6 +4,7 @@
 #include <cmath>
 #include "core/spawn_presets.hpp"
 #include "core/logger.hpp"
+#include "core/memory_monitor.hpp"
 #include "rendering/renderer.hpp"
 #include "rendering/camera.hpp"
 #include "rendering/camera_controller.hpp"
@@ -79,6 +80,9 @@ Application::~Application() {
 bool Application::initialize() {
     LOG_INFO("Initializing Wowee Native Client");
 
+    // Initialize memory monitoring for dynamic cache sizing
+    core::MemoryMonitor::getInstance().initialize();
+
     // Create window
     WindowConfig windowConfig;
     windowConfig.title = "Wowee";