feat(boards): add ESP32-32E-4 (4" ST7796) board support

sketches/doorbell-touch/boards/esp32-32e-4/tft_user_setup.h

@@ -0,0 +1,43 @@
+// ══════════════════════════════════════════════════════════
+//  TFT_eSPI User_Setup for ESP32-32E-4" (Hosyond 320x480)
+//  This file is copied over vendor/esp32-32e-4/TFT_eSPI/User_Setup.h
+//  by the install-libs-32e-4 task.
+// ══════════════════════════════════════════════════════════
+
+#define USER_SETUP_ID 201
+
+// ── Driver ──
+#define ST7796_DRIVER
+
+// ── Resolution ──
+#define TFT_WIDTH 320
+#define TFT_HEIGHT 480
+
+// ── SPI Pins (from lcdwiki.com/4.0inch_ESP32-32E_Display) ──
+#define TFT_MOSI 13
+#define TFT_SCLK 14
+#define TFT_CS 15
+#define TFT_DC 2
+#define TFT_RST -1 // tied to EN, handled by board
+
+// ── Backlight ──
+#define TFT_BL 27
+#define TFT_BACKLIGHT_ON HIGH
+
+// ── Touch (XPT2046 resistive) ──
+#define TOUCH_CS 33
+
+// ── SPI speed ──
+#define SPI_FREQUENCY 40000000
+#define SPI_READ_FREQUENCY 20000000
+#define SPI_TOUCH_FREQUENCY 2500000
+
+// ── Misc ──
+#define LOAD_GLCD
+#define LOAD_FONT2
+#define LOAD_FONT4
+#define LOAD_FONT6
+#define LOAD_FONT7
+#define LOAD_FONT8
+#define LOAD_GFXFF
+#define SMOOTH_FONT