feat: 添加设置模块和相关UI功能

- 新增settings_module.c实现设置菜单逻辑，包括蓝牙配对槽位管理和主题颜色选择
- 添加settings_mode_event.h/.c和settings_view_event.h/.c事件定义用于设置模式切换
- 创建settings_ui.h定义设置界面状态结构体和页面枚举
- 修改display_module.c集成设置UI显示逻辑，支持主界面和设置界面切换
- 在keyboard_core_module.c中添加设置活动状态检查，避免设置模式下键盘输入冲突
- 更新CMakeLists.txt包含新的源文件：settings_module.c、ui_settings.c及新事件文件
- 修改prj.conf调整LVGL内存池大小从16KB到32KB以支持更复杂UI渲染
- 移除BLE配对擦除相关配置选项并增加长按检测时间到1500毫秒
- 更新ui_main.c添加可见性控制函数用于界面切换

src/keyboard_core_module.c

@@ -20,6 +20,7 @@
 #include "keyboard_core.h"
 #include "keyboard_hid_report_event.h"
 #include "module_lifecycle.h"
+#include "settings_mode_event.h"
 #include "set_protocol_event.h"
 #include "transport_policy_event.h"
 
@@ -94,6 +95,7 @@ struct keyboard_core_module_ctx {
 	enum keyboard_protocol_mode transport_protocol_modes[HID_TRANSPORT_COUNT];
 	enum hid_transport_policy current_transport;
 	bool mode_valid;
+	bool settings_active;
 };
 
 static int do_init(void);
@@ -130,6 +132,7 @@ static struct keyboard_core_module_ctx ctx = {
 #define transport_protocol_modes ctx.transport_protocol_modes
 #define current_transport ctx.current_transport
 #define mode_valid ctx.mode_valid
+#define settings_active ctx.settings_active
 #define running module_lifecycle_is_running(&ctx.lc)
 
 static bool policy_to_transport(enum hid_transport_policy policy,
@@ -364,6 +367,7 @@ static void submit_consumer_fifo_frame(uint16_t usage_id)
 	enum mode_switch_mode mode;
 
 	if (!running || !mode_valid ||
+	    settings_active ||
 	    !transport_policy_to_mode(current_transport, &mode) ||
 	    (protocol_mode == KEYBOARD_PROTOCOL_MODE_BOOT)) {
 		return;
@@ -414,6 +418,10 @@ static void emit_keys_report(bool force)
 		return;
 	}
 
+	if (settings_active) {
+		return;
+	}
+
 	if (protocol_mode == KEYBOARD_PROTOCOL_MODE_BOOT) {
 		build_boot_report(report_buf);
 		report_size = KEYBOARD_BOOT_REPORT_SIZE;
@@ -445,6 +453,7 @@ static void emit_consumer_report(bool force)
 	enum mode_switch_mode mode;
 
 	if (!mode_valid || !transport_policy_to_mode(current_transport, &mode) ||
+	    settings_active ||
 	    (protocol_mode == KEYBOARD_PROTOCOL_MODE_BOOT)) {
 		return;
 	}
@@ -518,6 +527,7 @@ static int do_init(void)
 	reports_cache_invalidate();
 	function_usage_mask_clear();
 	mode_valid = false;
+	settings_active = false;
 	transport_protocol_modes[HID_TRANSPORT_USB] =
 		KEYBOARD_PROTOCOL_MODE_REPORT;
 	transport_protocol_modes[HID_TRANSPORT_BLE] =
@@ -562,6 +572,10 @@ static bool handle_button_event(const struct button_event *event)
 		return false;
 	}
 
+	if (settings_active) {
+		return false;
+	}
+
 	entry = keymap_get(event->key_id);
 	if (!entry) {
 		LOG_WRN("Unmapped key id 0x%04x", event->key_id);
@@ -639,6 +653,10 @@ static bool handle_encoder_event(const struct encoder_event *event)
 		return false;
 	}
 
+	if (settings_active) {
+		return false;
+	}
+
 	if (event->detents > 0) {
 		submit_consumer_pulse_frames(KEYBOARD_CONSUMER_CTRL_VOLUME_UP,
 					     (uint8_t)event->detents);
@@ -703,6 +721,27 @@ static bool app_event_handler(const struct app_event_header *aeh)
 			cast_transport_policy_event(aeh));
 	}
 
+	if (is_settings_mode_event(aeh)) {
+		const struct settings_mode_event *event =
+			cast_settings_mode_event(aeh);
+
+		if (settings_active == event->active) {
+			return false;
+		}
+
+		settings_active = event->active;
+		if (settings_active) {
+			if (mode_valid) {
+				emit_release_reports(current_transport);
+			}
+			emit_function_state_event();
+			keyboard_state_clear();
+			reports_cache_invalidate();
+		}
+
+		return false;
+	}
+
 	if (is_module_state_event(aeh)) {
 		const struct module_state_event *event = cast_module_state_event(aeh);
 
@@ -738,6 +777,7 @@ APP_EVENT_SUBSCRIBE(MODULE, button_event);
 APP_EVENT_SUBSCRIBE(MODULE, encoder_event);
 APP_EVENT_SUBSCRIBE(MODULE, function_bitmap_update_event);
 APP_EVENT_SUBSCRIBE(MODULE, set_protocol_event);
+APP_EVENT_SUBSCRIBE(MODULE, settings_mode_event);
 APP_EVENT_SUBSCRIBE(MODULE, transport_policy_event);
 APP_EVENT_SUBSCRIBE(MODULE, module_state_event);
 APP_EVENT_SUBSCRIBE_EARLY(MODULE, power_down_event);