Phase 7: EC11 encoder, life counter views, WS2812B RMT + LEDC buzzer feedback, E2E UI state machine; document build/hardware notes

main/display_manager.h

@@ -60,6 +60,12 @@ int display_put_text(int x, int y, const char *str, uint16_t fg, uint16_t bg);
  */
 void display_put_text_center(int y, const char *str, uint16_t fg, uint16_t bg);
 
+/**
+ * @brief Draw large digits (life counter style) using a scaled 5x7 pattern.
+ * @param x,y Top-left corner; scale = pixel size of one 5x7 cell.
+ */
+void display_draw_big_text(int x, int y, const char *str, int scale, uint16_t fg, uint16_t bg);
+
 /**
  * @brief Stream-decode a JPEG from LittleFS and draw it at the top-left.
  *        Uses tjpgd with a line-by-line output into the panel DMA path.