Nozzle guard in stop mode (brush log-only), wait for the nozzle before HOME

Test print start: guard peaks 1-8 in every phase except the brush scrub
(peak 47, 4 reads above 30 in a row), 0 I2C errors; a light finger push
gives 41. Stop mode for all phases, the brush stays log-only.

The contact homing in HOME restarted 6 times (sample spread too large)
while the nozzle was still heating to 150C; PRINT_WARMUP now waits for a
steady contact temperature first, as PRINT_START does.

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

macros/print/print_start_end.cfg

@@ -49,7 +49,9 @@ gcode:
     # Only to get the toolhead over the bed for the soak; the Z that counts
     # is the contact calibration in PRINT_START on the soaked bed
     _STATUS STATE=homing
-    _NOZZLE_CONTACT_TEMP
+    # HOME homes Z with Beacon contact: wait for a steady nozzle temperature,
+    # a nozzle still heating spreads the contact samples (6 restarts seen)
+    _NOZZLE_CONTACT_TEMP WAIT=1
     RESPOND MSG="homing"
     HOME
     {% if target_chamber > 30 %}
@@ -193,8 +195,9 @@ gcode:
     _GUARD_ON PHASE=z_home
     G28 Z
 
-    # Own phase: the bristles press on the nozzle too
-    _GUARD_ON PHASE=brush
+    # Own phase, log only: the bristles press on the nozzle (peak 47,
+    # 4 reads above 30 in a row), stop mode would shut down every start
+    _GUARD_ON PHASE=brush MODE=log
     BLOBIFIER_CLEAN
     _GUARD_OFF
     _STATUS STATE=calibrating_z