Restart when the MCU stops reporting

After about 2.5 days the chip stopped receiving MCU replies while writes still
went out, so switches looked stuck. Restart after 5 quiet minutes, but only if
the link worked earlier in that boot.

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

server-example.yaml

@@ -7,6 +7,6 @@ substitutions:
 packages:
   lamp:
     url: https://mangavalk.com/mangavalk/esphome-wake-up-light-ii.git
-    ref: v1.0.3
+    ref: v1.0.4
     files: [wake-up-light-ii.yaml]
     refresh: 1d