feat(engine): 重构游戏引擎核心逻辑

- 重新设计了引擎的初始化和运行流程
- 引入了实体组件系统(ECS)和物理系统
- 优化了渲染系统和输入系统
- 移除了不必要的资源管理系统
- 调整了日志系统的实现

game_engine/ge_core.h

@@ -2,8 +2,9 @@
 #define __GE_CORE_H__
 
 #include <ge_common.h>
-#include <render/ge_render.h>
-#include <timer/ge_timer.h>
+#include <ecs/ge_entity.h>
+#include <ecs/ge_render_system.h>
+#include <ecs/ge_physics_system.h>
 
 struct ge_engine_core;
 typedef struct ge_engine_core ge_core_t;
@@ -24,20 +25,31 @@ struct ge_engine_core {
     struct {
         ge_init_func_t init;
         ge_exit_func_t exit;
-        ge_run_func_t run;
+        ge_run_func_t process;
     } callbacks;
     ge_engine_state_t state;
-
-    ge_render_t render;
-    ge_timer_t timer;
+    ge_ecs_t ecs;
+    DECLARE_GE_KFIFO(einput, ge_uptr_t, 16, ge_event_input_t);
     struct {
         ge_uint_t fps;
     } configs;
+    void* context;
+    
+    struct {
+        ge_render_system_t render;
+        ge_physics_system_t physics;
+    } _systems;
+    ge_render_t _render;
+    ge_timer_t _timer;
+    ge_input_t _input;
+    ge_run_func_t _inner_run;
+    void* _inner_context;
 };
 
 /**
  * Basic Call
  */
+int ge_main(ge_core_t* core);
 void ge_engine_init(ge_core_t *core);
 void ge_engine_run(ge_core_t *core);