feat(keyboard): 添加键盘核心模块和HID报告事件支持

- 添加keyboard_core_module.c实现键盘核心功能，包括按键映射、
  报告构建和状态管理
- 添加keyboard_hid_report_event相关文件，实现键盘HID报告事件
  的定义和处理
- 在CMakeLists.txt中注册新的源文件
- 定义键盘协议模式（BOOT/REPORT）和报告类型枚举
- 实现按键事件处理、模式切换响应和电源管理功能
- 支持多媒体控制键和标准键盘按键的不同处理逻辑

inc/keyboard_core.h

@@ -0,0 +1,40 @@
+#ifndef BLINKY_KEYBOARD_CORE_H_
+#define BLINKY_KEYBOARD_CORE_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define KEYBOARD_BOOT_REPORT_SIZE 8U
+#define KEYBOARD_NKRO_USAGE_MAX 0xDFU
+#define KEYBOARD_NKRO_BITMAP_BYTES ((KEYBOARD_NKRO_USAGE_MAX + 8U) / 8U)
+#define KEYBOARD_NKRO_REPORT_SIZE (1U + KEYBOARD_NKRO_BITMAP_BYTES)
+#define KEYBOARD_CONSUMER_REPORT_SIZE 2U
+
+enum keyboard_protocol_mode {
+	KEYBOARD_PROTOCOL_MODE_BOOT,
+	KEYBOARD_PROTOCOL_MODE_REPORT,
+};
+
+enum keyboard_report_type {
+	KEYBOARD_REPORT_TYPE_KEYS,
+	KEYBOARD_REPORT_TYPE_CONSUMER,
+};
+
+enum keyboard_consumer_control {
+	KEYBOARD_CONSUMER_CTRL_MUTE,
+	KEYBOARD_CONSUMER_CTRL_VOLUME_UP,
+	KEYBOARD_CONSUMER_CTRL_VOLUME_DOWN,
+	KEYBOARD_CONSUMER_CTRL_PLAY_PAUSE,
+	KEYBOARD_CONSUMER_CTRL_NEXT_TRACK,
+	KEYBOARD_CONSUMER_CTRL_PREV_TRACK,
+	KEYBOARD_CONSUMER_CTRL_COUNT,
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BLINKY_KEYBOARD_CORE_H_ */