Fix PIR input: float GPIO (no pull-down) and log raw level changes.

Internal pull-down could hold OUT low; default idle=LOW/active=HIGH and prefer 5V VCC.

Co-authored-by: Cursor <cursoragent@cursor.com>

firmware/cyd/VERSION.txt

@@ -1,5 +1,5 @@
 name: CYD Human IR / PIR (cyd)
-git: bab93d0
+git: a7854de
 date: 2026-10-23
 board: ESP32-2432S028R (ILI9341)
 features: SoftSPI touch, LVGL, PIR OUT on GPIO22 motion count+1
@@ -12,5 +12,5 @@ offsets:
 sha256:
   bootloader.bin  3D234A7471F67B013686DABD4DEE7C1FA915C9928463616A94BC9297ACF1ABF8
   boot_app0.bin   F94C5D786A7A8FAB06AC5D10E33BF37711A6697636DC037559EA19CC410A17F0
-  firmware.bin    67228A24CE3DBED1C9CBA1AD811DB016AE7F9D12470E0DAD8E329004DC593F7B
+  firmware.bin    CA8FBB88050BC2284EFDDBF3ECC711A6539D4F3829994017812A30C0E2E6B057
   partitions.bin  148B959CBFF1C38AA8E1D5C0BA9D612C54997B945E56A63F41223EEF650653A1