🐛 Show bed size as 'work:' in M115

Fixes MarlinFirmware#22598

Author: thinkyhead

Marlin/src/gcode/host/M115.cpp

@@ -166,9 +166,11 @@ void GcodeSuite::M115() {
 
     // Machine Geometry
     #if ENABLED(M115_GEOMETRY_REPORT)
-      const xyz_pos_t dmin = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS },
+      const xyz_pos_t bmin = { 0, 0, 0 },
+                      bmax = { X_BED_SIZE , Y_BED_SIZE, Z_MAX_POS },
+                      dmin = { X_MIN_POS, Y_MIN_POS, Z_MIN_POS },
                       dmax = { X_MAX_POS, Y_MAX_POS, Z_MAX_POS };
-      xyz_pos_t cmin = dmin, cmax = dmax;
+      xyz_pos_t cmin = bmin, cmax = bmax;
       apply_motion_limits(cmin);
       apply_motion_limits(cmax);
       const xyz_pos_t lmin = dmin.asLogical(), lmax = dmax.asLogical(),