Capture OCR screenshots at 2x scale

Tesseract routinely drops small caption text at native resolution — the
weather panel's detail labels fail the WIND assertion with the text plainly
on screen. Let the compositor upscale the capture instead.

test/acceptance.d/base-test.sh

@@ -36,7 +36,9 @@ screen_contains() {
   local text="$1"
   local snapshot="/tmp/omarchy-acceptance-ocr-$$.png"
 
-  if ! timeout 10 grim "$snapshot" 2>/dev/null; then
+  # Capture at 2x scale: tesseract routinely drops small caption text at
+  # native resolution (the weather panel's detail labels, for one).
+  if ! timeout 10 grim -s 2 "$snapshot" 2>/dev/null; then
     rm -f "$snapshot"
     return 1
   fi