feat(display): add active state parameter to hint animation

1. **Added `active` parameter to hint animation**
   - `updateHint()` now accepts a boolean `active` parameter across both display drivers (TFT and GFX)
   - When `active=true`: faster pulse animation (500ms period) during active hold
   - When `active=false`: slower pulse animation (2000ms period) during idle state

2. **Improved animation calculations**
   - Replaced modulo operator with `fmodf()` for cleaner float calculations
   - Standardized to `static_cast<uint8_t>()` for type conversions
   - Fixed GFX driver to use `color565()` method instead of manual bit shifting

3. **Updated hint display logic**
   - Now differentiates between "holding" state (fast pulse) and "idle" state (slow pulse)
   - Hint draws at both states when `holdStartX >= 0` (touch position captured)

4. **Added code formatter task**
   - New `mise.toml` task for running clang-format across all source files

- Users get **visual feedback differentiation**: fast pulsing during active hold vs. slow pulsing when idle
- More intuitive UI that clearly indicates whether a long-press is in progress or just waiting
- Cleaner, more maintainable code with standardized calculations and type conversions

boards/esp32-32e/DisplayDriverTFT.cpp

@@ -169,10 +169,10 @@ HoldState DisplayDriverTFT::updateHold(unsigned long holdMs) {
     return h;
 }
 
-void DisplayDriverTFT::updateHint(int x, int y) {
-    float t = (millis() % 2000) / 2000.0f;
-    uint8_t v = (uint8_t)(30.0f + 30.0f * sinf(t * 2 * PI));
+void DisplayDriverTFT::updateHint(int x, int y, bool active) {
+    float period = active ? 500.0f : 2000.0f;
+    float t = fmodf(millis(), period) / period;
+    uint8_t v = static_cast<uint8_t>(30.0f + 30.0f * sinf(t * 2.0f * PI));
     uint16_t col = _tft.color565(v, v, v);
-    // Draw at touch position instead of center
     _tft.drawRect(x - 40, y - 20, 80, 40, col);
 }

boards/esp32-32e/esp32-32e.ino

@@ -44,8 +44,9 @@ void loop() {
             holdStartX = t.x;
             holdStartY = t.y;
         }
-        if(!h.active && holdStartX >= 0) {
-            display.updateHint(holdStartX, holdStartY);
+        // Fix for esp32-32e.ino
+        if(holdStartX >= 0) {
+            display.updateHint(holdStartX, holdStartY, h.active);
         }
     } else {
         holdStartX = -1;