Complete Surface: plane surfaces, extrusions, isolines and moves

Adds SurfaceFromProfile and Extrude kernel operations (doc.solids.surface and
doc.solids.extrude), accepts surfaces in Transform, and maps Surface with
editable isolines. Fixes a real bug found by the test: the surface kind field
overwrote the entity-type kind key in Python dicts, so it is exposed as
surface_kind, with a catalog test guarding against name collisions.

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

crates/ocs_plugin_api/entity_coverage_policy.json

@@ -502,6 +502,11 @@
     ],
     "Region": [
       "layer"
+    ],
+    "Surface": [
+      "layer",
+      "u_isolines",
+      "v_isolines"
     ]
   },
   "readable": {
@@ -627,6 +632,12 @@
       "uid",
       "point_of_reference",
       "history_handle"
+    ],
+    "Surface": [
+      "surface_kind",
+      "modeler_format_version",
+      "point_of_reference",
+      "history_handle"
     ]
   },
   "aliases": {
@@ -643,6 +654,9 @@
     "MText": {
       "text": "value",
       "insertion": "insertion_point"
+    },
+    "Surface": {
+      "surface_kind": "kind"
     }
   },
   "synthetic": {