🔧 Fix some ProUI builds

Marlin/src/inc/Conditionals-3-etc.h

@@ -420,8 +420,6 @@
   #undef Z_PROBE_LOW_POINT
   #undef MULTIPLE_PROBING
   #undef EXTRA_PROBING
-  #undef PROBE_OFFSET_ZMIN
-  #undef PROBE_OFFSET_ZMAX
   #undef PAUSE_BEFORE_DEPLOY_STOW
   #undef PAUSE_PROBE_DEPLOY_WHEN_TRIGGERED
   #undef PROBING_HEATERS_OFF
@@ -437,6 +435,11 @@
   #undef NOZZLE_TO_PROBE_OFFSET
 #endif
 
+#if NONE(BABYSTEPPING, HAS_BED_PROBE, HAS_WORKSPACE_OFFSET)
+  #undef PROBE_OFFSET_ZMIN
+  #undef PROBE_OFFSET_ZMAX
+#endif
+
 #if ENABLED(BELTPRINTER) && !defined(HOME_Y_BEFORE_X)
   #define HOME_Y_BEFORE_X
 #endif

Marlin/src/lcd/dwin/proui/dwin.cpp

@@ -2168,6 +2168,13 @@ void autoHome() { queue.inject_P(G28_STR); }
 
 #if HAS_ZOFFSET_ITEM
 
+  #ifndef PROBE_OFFSET_ZMIN
+    #define PROBE_OFFSET_ZMIN -20
+  #endif
+  #ifndef PROBE_OFFSET_ZMAX
+    #define PROBE_OFFSET_ZMAX  20
+  #endif
+
   void applyZOffset() { TERN_(EEPROM_SETTINGS, settings.save()); }
   void liveZOffset() {
     #if ANY(BABYSTEP_ZPROBE_OFFSET, JUST_BABYSTEP)