Fix CI: clang-format-19 style and broken doc links

Author: dnpham23

docs/src/examples/circular_hole.md

@@ -49,9 +49,9 @@ All configurations use a mesh length unit of ``\mu\text{m}``.
 ## Configuration
 
 Each configuration uses
-[`"Problem": {"Type": "Magnetostatic"}`](../config/problem.md#config-problem) and specifies
+[`"Problem": {"Type": "Magnetostatic"}`](../config/reference.md#config-problem) and specifies
 flux loop boundaries via the
-[`"FluxLoop"`](../config/boundaries.md#boundaries-fluxloop) keyword. The shared solver
+[`"FluxLoop"`](../config/reference.md#config-boundaries) keyword. The shared solver
 settings are:
 
 ```json

docs/src/guide/boundaries.md

@@ -230,7 +230,7 @@ affects the source term on the right hand side.
 ## Flux boundary
 
 Flux loop boundary conditions are available for magnetostatic simulations and are specified
-using the [`"FluxLoop"`](../config/boundaries.md#boundaries%5B%22FluxLoop%22%5D) boundary
+using the [`"FluxLoop"`](../config/reference.md#config-boundaries) boundary
 keyword. This boundary condition prescribes magnetic flux through specified holes in
 conducting surfaces, enabling inductance matrix extraction for flux-based excitations. The
 flux loop boundary condition works by:

palace/utils/geodata.cpp

@@ -2388,7 +2388,7 @@ int LocalEdgeSplit(std::unique_ptr<mfem::Mesh> &orig_mesh,
 
   // For each element / boundary element, find the (at most one, by independence) split edge
   // it contains, returning the matching midpoint id and the local endpoint vertices, or -1.
-  auto find_split_edge = [&edge_midpoint](const int *v, int nv, const int (*edge_vert)[2],
+  auto find_split_edge = [&edge_midpoint](const int *v, int nv, const int(*edge_vert)[2],
                                           int nedge, int &lv0, int &lv1)
   {
     for (int le = 0; le < nedge; le++)