10C Inc 2: feature tail

119 of the app's 138 symbols now resolve; only the I/O modules and the Inc 4
tail are left. New: GCE2d, GCPnts, BRepFilletAPI, BRepOffsetAPI,
ShapeAnalysis, ShapeFix, ShapeUpgrade, BRepCheck, BRepTools, BRepLib,
BRepExtrema, BRepClass3d, IntCurvesFace, plus TopTools_HSequenceOfShape.

The fillet and chamfer builders derive BRepBuilderAPI_MakeShape, so their
history comes from the base bound in Inc 1 — which is what lets the app read a
blend's provenance the same way it reads a boolean's. The Inc 2 gate compares
that history exactly, alongside the splitter's, which is what sketch-region
attribution depends on.

Two shapes of deviation, both commented where they are bound:

- Trailing enum arguments are left off four constructors (fillet's
  ChFi3d_FilletShape, MakeThickSolidByJoin's mode/join pair, BRepExtrema's
  Extrema flags, and Inc 1's GeomAPI_ProjectPointOnSurf). An unregistered enum
  cannot serve as a default argument — nanobind converts defaults at binding
  time, so it fails the whole module's import with std::bad_cast. The app never
  overrides any of them, so OCCT's own defaults apply and behaviour is
  unchanged.
- ShapeAnalysis_FreeBounds.ConnectEdgesToWires reassigns a Handle& out
  parameter, which the caster cannot honour because it hands C++ a copy of the
  handle. The lambda splices the result into the sequence the caller passed, so
  the pass-empty-then-read shape the app uses still works. This is the one
  place upstream's holder semantics and ours differ observably.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DfriM8XUkn7uYf5Dwe2xo6

tests/data/manifest.json

@@ -499,5 +499,197 @@
         ]
       }
     }
+  },
+  "inc2": {
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+        -1e-07,
+        10.0000001,
+        20.0000001,
+        30.0000001
+      ],
+      "n_faces": 7,
+      "n_edges": 15,
+      "n_solids": 1,
+      "history": [
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+          "deleted": false,
+          "modified": [
+            3
+          ],
+          "generated": []
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+        {
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+          "deleted": false,
+          "modified": [],
+          "generated": []
+        },
+        {
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+          "deleted": false,
+          "modified": [
+            37
+          ],
+          "generated": []
+        },
+        {
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+          "deleted": false,
+          "modified": [],
+          "generated": []
+        },
+        {
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+          "deleted": false,
+          "modified": [
+            32
+          ],
+          "generated": []
+        },
+        {
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+          "deleted": false,
+          "modified": [
+            13
+          ],
+          "generated": []
+        }
+      ]
+    },
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+      "volume": 5966.25,
+      "area": 2171.389610306789,
+      "bbox": [
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+        -1.000000001110223e-07,
+        -1e-07,
+        10.0000001,
+        20.0000001,
+        30.000000100000005
+      ],
+      "n_faces": 7,
+      "n_edges": 15,
+      "n_solids": 1
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+    "splitter": {
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+      "area": 3400.0,
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+        10.00000015,
+        20.00000015,
+        30.00000015
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+      "n_edges": 28,
+      "n_solids": 3,
+      "history": [
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+          "modified": [
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+            37,
+            61
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+            41
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+          "deleted": false,
+          "modified": [
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+            81
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+          "deleted": false,
+          "modified": [],
+          "generated": []
+        },
+        {
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+          "deleted": false,
+          "modified": [
+            25,
+            54,
+            78
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+          "generated": [
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+            51
+          ]
+        },
+        {
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+          "deleted": false,
+          "modified": [
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+            44,
+            68
+          ],
+          "generated": [
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+            46
+          ]
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+    "unified": {
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+      "area": 3650.0,
+      "bbox": [
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+        -1.5e-07,
+        -1.5e-07,
+        25.00000015,
+        25.00000015,
+        30.00000015
+      ],
+      "n_faces": 12,
+      "n_edges": 30,
+      "n_solids": 1
+    },
+    "distance": {
+      "is_done": true,
+      "value": 30.0,
+      "n_solutions": 4
+    },
+    "classifier": {
+      "inside": 0,
+      "outside": 1
+    },
+    "uv_bounds": [
+      0.0,
+      30.0,
+      -20.0,
+      0.0
+    ],
+    "outer_wire_edges": 4
   }
 }