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

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

platformio.ini

@@ -1,4 +1,4 @@
-; CYD ESP32-2432S028 — TF 卡信息 + LVGL 显示
+; CYD ESP32-2432S028 — 屏幕 + 触控测试
 [env:cyd]
 platform = espressif32
 board = esp32dev
@@ -35,7 +35,6 @@ build_flags =
   -DSMOOTH_FONT=1
   -DSPI_FREQUENCY=40000000
   -DSPI_READ_FREQUENCY=20000000
-  ; lv_conf.h 放在 .pio/libdeps/cyd/lv_conf.h（见 extra_script）
   -DLV_CONF_SKIP
   -DLV_COLOR_DEPTH=16
   -DLV_MEM_SIZE=49152
@@ -44,10 +43,8 @@ build_flags =
   -DLV_FONT_MONTSERRAT_18=1
   -DLV_FONT_MONTSERRAT_20=1
   -DLV_USE_TFT_ESPI=1
-  -DLV_USE_FLEX=1
   -DLV_USE_BUTTON=1
   -DLV_USE_LABEL=1
-  -DLV_USE_BAR=1
   -I${PROJECT_DIR}/include
 
 extra_scripts = pre:copy_lv_conf.py