Move speaker reboot bookkeeping into the migration

Keep hardware setup limited to installing the firmware package. The migration owns the pending-reboot marker and preserves prompts for every user migrating before reboot.

install/hardware/dell-xps13-ptl-speaker-firmware.sh

@@ -1,7 +1,3 @@
 if omarchy-hw-dell-xps13-dx13260-ptl; then
-  if omarchy-pkg-missing linux-firmware-cirrus-dx13260; then
-    firmware_pending="/run/omarchy/xps13-ptl-speaker-firmware"
-    sudo install -Dm644 /dev/null "$firmware_pending"
-  fi
   omarchy-pkg-add linux-firmware-cirrus-dx13260
 fi

migrations/1791265613.sh

@@ -1,10 +1,14 @@
 echo "Install the Dell XPS 13 Panther Lake speaker firmware"
 
 if omarchy-hw-dell-xps13-dx13260-ptl; then
+  firmware_pending="/run/omarchy/xps13-ptl-speaker-firmware"
+  if omarchy-pkg-missing linux-firmware-cirrus-dx13260; then
+    sudo install -Dm644 /dev/null "$firmware_pending"
+  fi
+
   source "$OMARCHY_PATH/install/hardware/dell-xps13-ptl-speaker-firmware.sh"
 
   # The marker lasts until reboot so every user migrating beforehand is prompted.
-  firmware_pending="/run/omarchy/xps13-ptl-speaker-firmware"
   if [[ -e $firmware_pending ]]; then
     omarchy-state set reboot-required
   fi

test/shell.d/xps13-ptl-firmware-test.sh

@@ -98,9 +98,10 @@ for version in "" "20260810-2" "20260810-3" "20260810-4" "20260910-2" "20260916-
   run_leaf || fail "the alias package is installed during hardware setup"
   [[ $(<"$TEST_LOG") == "$install_call" && $(<"$TEST_VERSION_FILE") == "$version" && -e $TEST_ALIAS_FILE ]] ||
     fail "hardware setup installs the separate aliases without replacing stock firmware"
-  [[ -e $firmware_pending ]] || fail "the firmware repair records its pending reboot"
+  [[ ! -e $firmware_pending ]] || fail "hardware setup leaves reboot bookkeeping to the migration"
 done
 pass "hardware setup installs the package identity without replacing any stock firmware"
+pass "hardware setup leaves reboot bookkeeping to the migration"
 
 reset_fixture "20260810-2"
 touch "$TEST_ALIAS_FILE"