feat: add status screen with system info display

boards/esp32-32e-4/DisplayDriverTFT.cpp

@@ -138,6 +138,12 @@ void DisplayDriverTFT::render(const ScreenState& st) {
             _needsRedraw = false;
         }
         break;
+    case ScreenID::STATUS:
+        if(_needsRedraw) {
+            drawStatus(st);
+            _needsRedraw = false;
+        }
+        break;
     case ScreenID::OFF:
         if(_needsRedraw) {
             _tft.fillScreen(TFT_BLACK);
@@ -194,6 +200,22 @@ void DisplayDriverTFT::drawAlert(const ScreenState& st) {
     _tft.fillScreen(bg);
     _tft.setTextColor(TFT_WHITE, bg);
 
+    // Progressive fill hint - draws dark overlay from bottom rising up
+    if(_alertTouchDown) {
+        uint32_t touchElapsed = millis() - _alertTouchStartMs;
+        float progress = (float)touchElapsed / (float)ALERT_FILL_DURATION_MS;
+        if(progress > 1.0f)
+            progress = 1.0f;
+
+        int dispH = _tft.height();
+        int fillHeight = (int)(dispH * progress);
+        if(fillHeight > 0) {
+            // Draw dark overlay from bottom
+            uint16_t overlay = _tft.color565(80, 0, 0); // Dark red
+            _tft.fillRect(0, dispH - fillHeight, _tft.width(), fillHeight, overlay);
+        }
+    }
+
     setTitleFont();
     _tft.setCursor(10, 28); // y=28 baseline for ~18px font
     _tft.print(st.alertTitle.length() > 0 ? st.alertTitle : "ALERT");
@@ -257,6 +279,61 @@ void DisplayDriverTFT::drawDashboard(const ScreenState& st) {
     }
 }
 
+void DisplayDriverTFT::drawStatus(const ScreenState& st) {
+    int dispW = _tft.width();
+    int dispH = _tft.height();
+
+    _tft.fillScreen(TFT_BLACK);
+
+    // Header
+    _tft.fillRect(0, 0, dispW, STYLE_HEADER_HEIGHT, 0x1A1A);
+    _tft.setTextSize(1);
+    _tft.setTextColor(TFT_WHITE);
+    _tft.setCursor(5, 20);
+    _tft.print("STATUS");
+
+    // Back button in lower right
+    _tft.setCursor(dispW - 60, dispH - 20);
+    _tft.print("[BACK]");
+
+    // Status info
+    setBodyFont();
+    int y = STYLE_HEADER_HEIGHT + 20;
+
+    // WiFi
+    _tft.setCursor(10, y);
+    _tft.printf("WiFi: %s", st.wifiSsid.length() > 0 ? st.wifiSsid.c_str() : "N/A");
+    y += 20;
+
+    _tft.setCursor(10, y);
+    _tft.printf("RSSI: %d dBm", st.wifiRssi);
+    y += 20;
+
+    _tft.setCursor(10, y);
+    _tft.printf("IP: %s", st.ipAddr.length() > 0 ? st.ipAddr.c_str() : "N/A");
+    y += 30;
+
+    // Uptime
+    uint32_t upSec = st.uptimeMs / 1000;
+    uint32_t upMin = upSec / 60;
+    uint32_t upHr = upMin / 60;
+    upSec = upSec % 60;
+    upMin = upMin % 60;
+    _tft.setCursor(10, y);
+    _tft.printf("Uptime: %02lu:%02lu:%02lu", upHr, upMin, upSec);
+    y += 20;
+
+    // Heap
+    _tft.setCursor(10, y);
+    _tft.printf("Heap: %d bytes", ESP.getFreeHeap());
+    y += 20;
+
+    // Last poll
+    uint32_t pollAgo = (millis() - st.lastPollMs) / 1000;
+    _tft.setCursor(10, y);
+    _tft.printf("Last poll: %lu sec ago", pollAgo);
+}
+
 // ── Touch ───────────────────────────────────────────────────
 
 TouchEvent DisplayDriverTFT::readTouch() {
@@ -317,6 +394,15 @@ TouchEvent DisplayDriverTFT::readTouch() {
 
     // Track previous state for next call
     _touchWasPressed = touched;
+
+    // Track alert touch for progressive hint
+    if(evt.pressed) {
+        _alertTouchDown = true;
+        _alertTouchStartMs = millis();
+    } else if(evt.released) {
+        _alertTouchDown = false;
+    }
+
     return evt;
 }
 

boards/esp32-32e-4/DisplayDriverTFT.h

@@ -31,6 +31,7 @@ private:
     void drawBoot(const ScreenState& st);
     void drawAlert(const ScreenState& st);
     void drawDashboard(const ScreenState& st);
+    void drawStatus(const ScreenState& st);
 
     TFT_eSPI _tft;
 
@@ -40,6 +41,11 @@ private:
     BootStage _lastBootStage = BootStage::SPLASH;
     bool _needsRedraw = true;
 
+    // Touch hint for alert - progressive fill from bottom
+    bool _alertTouchDown = false;
+    uint32_t _alertTouchStartMs = 0;
+    static constexpr uint32_t ALERT_FILL_DURATION_MS = 3000;
+
     // Touch tracking for press/release detection
     bool _touchWasPressed = false;
     int _touchDownX = -1;