ux(provisioning): up-arrow inside portrait diagram too

The arrow's purpose is to show the user which edge is "up" when they
hang the frame, regardless of orientation — so it belongs in both
diagrams, not just landscape. Slightly smaller arrow in portrait
(half_w=12, h=22) to match the narrower screen footprint.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/gen_screens.py

@@ -141,9 +141,8 @@ def orientation_diagrams(draw, accent, show_active_ls=True):
     draw.rectangle([ls_x, ls_y, ls_x+ls_w-1, ls_y+ls_h-1], outline=BK, width=3)
     draw.rectangle([ls_x, ls_y+ls_h, ls_x+rib_w-1, ls_y+ls_h+rib_h-1], fill=BK)
 
-    # Up arrow inside the landscape screen — communicates "this edge is up"
+    # Up arrow inside both diagrams — shows the user which edge is "up"
-    # so the user can position the frame correctly even though we no longer
+    # when they hang the frame, regardless of orientation.
-    # use color to flag landscape as the supported mode.
     up_arrow(draw, ls_x + ls_w // 2, ls_y + ls_h // 2, half_w=14, h=26)
 
     # Thin separator
@@ -160,6 +159,8 @@ def orientation_diagrams(draw, accent, show_active_ls=True):
     draw.rectangle([pt_x-pr_w, pt_y, pt_x-1, pt_y+pr_h-1], fill=BK)
     draw.rectangle([pt_x, pt_y, pt_x+pt_w-1, pt_y+pt_h-1], outline=BK, width=3)
 
+    up_arrow(draw, pt_x + pt_w // 2, pt_y + pt_h // 2, half_w=12, h=22)
+
 
 # ═══════════════════════════════════════════════════════════════════════════════
 # AP SCREEN — accent-colored, WiFi credentials