SteelTailor Marker profile: emit M11/M12 (X/Y offset)

Job #2067 round 1 + the Starfire SF-2300 manual confirm M11/M12 are the
line-drawing gun X/Y offset (M62/M63), not a Z or deploy move. Emit M11 in
gcodePre and M10+M12 in gcodePost. Operator sets the offset value in the
controller's System Parameters.

Marker Z is still unsolved separately - the controller does no marker Z at all
(built for a non-contact spray gun); tracked on job #2067 round 2.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/kiri/dev/laser/SteelTailor.Marker.json

@@ -13,17 +13,19 @@
     "laserMaxPower": 1,
     "gcodePre": [
         "G21 ; units mm",
-        "G90 ; absolute positioning - controller touchscreen sets the origin/start point"
+        "G90 ; absolute positioning - controller touchscreen sets the origin/start point",
+        "M11 ; apply line-marker X/Y offset (set the offset in controller System Parameters > line drawing bias)"
     ],
     "gcodePost": [
-        "M10 ; scribe tip up",
+        "M10 ; scribe/marker off",
+        "M12 ; remove line-marker X/Y offset",
         "M02 ; program end"
     ],
     "gcodeLaserOn": [
-        "M09 ; scribe tip down (marker on)"
+        "M09 ; marker on (fires the line-drawing gun output)"
     ],
     "gcodeLaserOff": [
-        "M10 ; scribe tip up (marker off)"
+        "M10 ; marker off"
     ],
     "gcodeFExt": "nc",
     "gcodeSpace": true,