Format new upstream example files for ruff import sorting

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: sbryngelson

examples/2D_patch_modal_shape/case.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python3
 """Minimal 2D acoustic case with geometry 13 (2D modal Fourier shape). Additive form."""
-import math
+
 import json
+import math
 
 Nx, Ny = 64, 64
 Lx, Ly = 8.0, 8.0

examples/2D_patch_modal_shape_exp/case.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python3
 """Minimal 2D acoustic case with geometry 13 in exponential form (modal_use_exp_form)."""
-import math
+
 import json
+import math
 
 Nx, Ny = 64, 64
 Lx = 8.0

examples/3D_patch_spherical_harmonic/case.py

@@ -1,7 +1,8 @@
 #!/usr/bin/env python3
 """Minimal 3D acoustic case with geometry 14 (spherical harmonic surface)."""
-import math
+
 import json
+import math
 
 L = 8.0
 N = 50