Inspection: hide the tray's own magnifier icon for cards; fill the gaps between back gold fingers

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

art/big.py

@@ -290,15 +290,17 @@ def gpu_back(accent, accent_dark, burnt=False):
         screw(c, sx, sy)
     sticker(c, 5)
     seal(c)
-    # 背面金手指（暗一档）
+    # 背面金手指（暗一档）：触点之间是 PCB 的深绿，只有键位缺口是空的
+    for y in range(y1 + 12, FING_Y1 + 1):
+        for x in range(x0, x1 + 1):
+            if NOTCH_X - 2 <= x <= NOTCH_X + 3 and y > y1 + 13:
+                continue
+            c.put(x, y, 'g2')
     for x in range(x0 + 2, x1 - 2):
         if NOTCH_X - 2 <= x <= NOTCH_X + 3 or (x - x0) % 4 == 3:
             continue
         for y in range(y1 + 14, FING_Y1 + 1):
             c.put(x, y, 'Y' if (x - x0) % 4 else 'p')
-    for y in range(y1 + 12, y1 + 14):
-        for x in range(x0, x1 + 1):
-            c.put(x, y, 'g2')
     if burnt:
         for dx, dy in ((60, 30), (130, 40), (50, 80), (100, 70), (150, 90)):
             c.rect(dx, dy, dx + 6, dy + 4, 'c')