ci: wgpu mac — disable IfcGeom/CGAL/OCCT; drop ctest -R filter

Two iterations on the first CI run:

1. The top-level cmake/CMakeLists.txt unconditionally find_package's
   CGAL (line 217) and OpenCASCADE (222) before our BUILD_BONSAIVIEWER
   gate kicks in, so configure failed with "Could NOT find CGAL". Pass
   BUILD_IFCGEOM=OFF + BUILD_IFCPYTHON=OFF + BUILD_CONVERT=OFF +
   BUILD_EXAMPLES=OFF + BUILD_GEOMSERVER=OFF + WITH_OPENCASCADE=OFF +
   WITH_CGAL=OFF + COLLADA_SUPPORT=OFF so all the heavy deps stay out
   of the configure step. Verified locally on Linux.

2. The ctest -R "wgpu" filter was case-sensitive and the Catch2 test
   names begin with capital "Wgpu" (e.g. "WgpuSelectionState starts
   empty..."), so it matched zero tests and ctest exited with "No
   tests were found". The standalone wgpu config only builds the
   wgpu tests anyway, so the filter is unnecessary — drop it.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.github/workflows/ci-wgpu-mac.yml

@@ -63,6 +63,10 @@ jobs:
 
       - name: Configure (standalone wgpu, tests on)
         shell: bash
+        # The top-level CMakeLists.txt unconditionally find_package's
+        # CGAL/OpenCASCADE/etc. before our BUILD_BONSAIVIEWER gate kicks
+        # in, so we explicitly disable every IfcGeom/IfcParse/IfcPython
+        # subproject — we only want IfcViewerWgpu + its state tests.
         run: |
           QT_PREFIX="$(brew --prefix qt)"
           cmake -B build \
@@ -72,6 +76,14 @@ jobs:
             -DBUILD_BONSAIVIEWER=OFF \
             -DBUILD_BONSAIVIEWER_WGPU=ON \
             -DBUILD_BONSAIVIEWER_TESTS=ON \
+            -DBUILD_IFCGEOM=OFF \
+            -DBUILD_IFCPYTHON=OFF \
+            -DBUILD_CONVERT=OFF \
+            -DBUILD_EXAMPLES=OFF \
+            -DBUILD_GEOMSERVER=OFF \
+            -DWITH_OPENCASCADE=OFF \
+            -DWITH_CGAL=OFF \
+            -DCOLLADA_SUPPORT=OFF \
             -DCMAKE_PREFIX_PATH="${QT_PREFIX}" \
             -DQT_DIR="${QT_PREFIX}" \
             -DCMAKE_C_COMPILER_LAUNCHER=ccache \
@@ -88,7 +100,9 @@ jobs:
 
       - name: Run state tests
         working-directory: build
-        run: ctest --output-on-failure -R "wgpu"
+        # No -R filter: only wgpu state tests are built in this config,
+        # so ctest discovers exactly those.
+        run: ctest --output-on-failure
 
       - name: Upload CMake configure log on failure
         if: failure()