add button manager

frontend/views/draw_utils.py

@@ -0,0 +1,12 @@
+def draw_clock(draw, position, radius=16, width=1):
+    """Draw a simple clock icon at the given position"""
+    x, y = position
+    draw.circle((x, y), radius, outline='black', width=width)
+    draw.line((x, y - radius + 2, x, y), fill='black', width=width)  # Hour hand
+    draw.line((x, y, x + radius * 3 / 4, y), fill='black', width=width)  # Minute hand
+
+def draw_long_press(draw, position):
+    """Draw a long press button icon at the given position"""
+    x, y = position
+    for i in range(0, 5, 2):
+        draw.circle((x + i, y), 2, fill='black')