* Ignore Clipper, libpng, mcut and Boost.Polygon Internals in clang-tidy
Each only works through a wrapper or umbrella header: libslic3r/clipper.hpp or clipper_z.hpp configure Clipper before including it, png.h pulls in libpng's config headers, and Boost.Polygon's headers only compile through polygon.hpp or voronoi.hpp.
* Ignore minilzo's Config Headers in clang-tidy
lzoconf.h and lzodefs.h are internal to minilzo.h, which is what the code includes.
* Add Missing Includes Across the Remaining Sources and Tests
Covers src/slic3r/Utils, src/slic3r/plugin, src/slic3r/Config, src/libvgcode, src/dev-utils, src/OrcaSlicer.cpp and tests/, the directories left after src/slic3r/GUI and src/libslic3r. Generated with clang-tidy misc-include-cleaner. libvgcode's own headers are included by relative path as in the rest of that library, and Catch2 and pybind11 with angle brackets as elsewhere in the repo.
* Make the GUI and Test Headers Compile on Their Own
Each now includes, or forward-declares, what it uses instead of relying on what its includers happened to include first. Headers that only compile on one platform, or that nothing built includes, are left alone.
* Keep Windows and nanosvg Setup Ahead of the Added Includes
OrcaSlicer.cpp and several tests set _WIN32_WINNT, WIN32_LEAN_AND_MEAN or NOMINMAX before including Windows.h, and the profile validator defines NANOSVG_IMPLEMENTATION before any libslic3r header. The added includes had landed above those blocks, which broke the Windows build.
* Add the GUI Includes the First Pass Missed
Covers headers that only became editable once they compiled on their own, and wx symbols whose suggested header changed as the clang-tidy ignore list grew after the src/slic3r/GUI pass.
* Keep the Added Test Includes Below the NOMINMAX Guard
test_marchingsquares.cpp and test_texture_displacement.cpp had includes inside #ifndef NOMINMAX, which the tests inherit as defined on Windows from libslic3r, so those were skipped there. .clang-tidy also ignores the MSVC STL and UCRT internals, Boost.Multiprecision's fwd.hpp and CPython's Windows include directory, as in #16068.
* Percent-Encode Local File URLs for Embedded Web Pages
The Home tab, setup wizard, Project tab and other embedded pages were
loaded from file:// URLs built by pasting the resources path into a
string. A '#', '%' or '?' in the install path was then read as a URL
fragment, escape or query, so the pages failed to load, for example a
portable install under D:\#OneDrive showed a directory listing instead
of the setup wizard.
Add file_url_from_path(), built on wxFileSystem::FileNameToURL, and use
it wherever a local page or image URL is built from a path. Queries such
as ?lang= are appended after the path is encoded. The wizard's printer
cover images are passed to the page as file URLs too.
* Encode the Login Error Page URL and Cover More Windows Path Forms
The login dialog's error page was still loaded from a raw resources path;
it now uses file_url_from_path like the other local pages.
The Windows file URL tests now also cover a resources path joined with a
forward-slash relative path, as the callers build them, and a UNC path.
* Build the Flush Dialog Page URLs with the Shared Helper
WipingDialog and NozzleListTable still called
wxFileSystem::FileNameToURL directly. They now go through
file_url_from_path like every other local page, so the URLs are built
in one place.
Adds a test for a resources directory with a '#' in its name, which the
plugin page check did not recognise before.