Strip TF and audio; keep touch-only screen test UI.

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

include/audio_test.h

@@ -1,19 +0,0 @@
-#pragma once
-
-#include <Arduino.h>
-
-void audio_init();
-
-// 扬声器总开关（关则静音并停止播放）
-void audio_set_enabled(bool on);
-bool audio_is_enabled();
-
-// 开始/停止内置音乐（非阻塞，在 audio_tick 推进）
-void audio_play_music();
-void audio_stop();
-bool audio_is_playing();
-
-// 主循环调用
-void audio_tick();
-
-const char *audio_last_status();

include/pins.h

@@ -1,27 +1,16 @@
 #pragma once
 
-// CYD ESP32-2432S028R 引脚
+// CYD ESP32-2432S028R — 仅屏幕 + 触摸
 
-// TFT (HSPI / TFT_eSPI 已在 platformio.ini 配置)
 #define TFT_BL_PIN 21
 
-// TF / microSD (独立 VSPI)
-#define SD_MISO 19
-#define SD_MOSI 23
-#define SD_SCK  18
-#define SD_CS   5
-
-// 板载 SC8002B 功放 → P4 喇叭座（DAC2）
-#define SPEAKER_PIN 26
-
-// 触摸 XPT2046（SoftSPI 专用脚，VSPI 留给 SD；勿用 TOUCH_CS，会与 TFT_eSPI 冲突）
 #define CYD_TOUCH_IRQ  36
 #define CYD_TOUCH_MOSI 32
 #define CYD_TOUCH_MISO 39
 #define CYD_TOUCH_CLK  25
 #define CYD_TOUCH_CS   33
 
-// 与 Random Nerd Tutorials / temperature 一致：物理竖屏 + LVGL 270 得横屏
+// 物理竖屏；LVGL ROTATION_270 → 横屏 UI
 #define SCREEN_WIDTH  240
 #define SCREEN_HEIGHT 320
 #define UI_HOR_RES    320

include/sd_info.h

@@ -1,21 +0,0 @@
-#pragma once
-
-#include <Arduino.h>
-
-struct SdCardInfo {
-  bool mounted;
-  bool present;
-  const char *type;       // MMC / SDSC / SDHC / UNKNOWN / NONE
-  const char *filesystem; // FAT12 / FAT16 / FAT32 / exFAT / FAT / —
-  uint64_t card_bytes;    // 卡物理容量
-  uint64_t total_bytes;   // 分区总容量
-  uint64_t used_bytes;
-  uint64_t free_bytes;
-  uint32_t root_files;    // 根目录条目数
-  String error;           // 失败原因
-};
-
-bool sd_init();
-void sd_deinit();
-SdCardInfo sd_read_info();
-String format_bytes(uint64_t bytes);

include/ui.h

@@ -1,8 +1,6 @@
 #pragma once
 
-#include "sd_info.h"
+#include <stdint.h>
 
 void ui_create();
-void ui_update(const SdCardInfo &info);
-void ui_refresh_audio_buttons();
 void ui_set_touch_debug(int16_t lx, int16_t ly, bool down);