[Sunrisepeak]

Add mcpplibs.mwrap.recastnavigation (recastnavigation-m 1.6.0)

Form

• Third-party upstream recastnavigation/recastnavigation, release
  v1.6.0, zlib.
• Form A external mwrap module repository mcpplibs/recastnavigation-m,
  package mcpplibs.mwrap.recastnavigation, version 1.6.0 (the first indexed release of the identity), tag mwrap-1.6.0;
  release asset recastnavigation-m-1.6.0.tar.gz (13382f6c…daa05), CN mirror gitcode.com/mcpp-res/mwrap-recastnavigation
  with identical bytes.
• Implementation ownership: the library has no compat package in this index, so the wrapper vendors the four libraries
  (Recast, Detour, DetourCrowd, DetourTileCache: Include/ and Source/) from the release archive (checksums of every
  file in upstream/documents.json) and builds them with -ffp-contract=off and no fast math, with NDEBUG in every
  profile (upstream declares its assert hooks only without it). DebugUtils, the demo and upstream's tests are not
  vendored. It deploys upstream's README and License.txt with its own LICENSE/NOTICE (runtime.deploy).

Module

• mcpplibs.mwrap.recastnavigation: every name declared at global scope by the four libraries' public headers, by
  export using ::name; (99 types, 75 enumerators of unscoped enumerations, 170 functions).
• Internal-linkage adaptation: 52 static const objects (DT_VERTS_PER_POLYGON, DT_SUCCESS, DT_FAILURE,
  RC_WALKABLE_AREA, RC_PI …) are declared again under their names, with their types and values, in
  mcpplibs::mwrap::recastnavigation (an integer from the header's constant, a float from its literal).
• No .macros module: upstream's macros are its asserts, branch hints and RC_SIZE_MAX, used by its own sources.
• The export list is derived by tools/surface.py from the headers as clang reads them (its JSON AST), recorded in
  tools/surface.json, and audited in CI: the module is the record on every row, and on the Linux LLVM row the record
  is derived again and compared.

Verification

• Wrapper CI (Linux x86_64 and arm64 with GCC 16.1 and LLVM 23.1.3, macOS LLVM, Windows LLVM, each in the dev and
  release profiles; wasm32-emscripten under node): a navigation mesh built from a floor and a wall, the same bytes
  twice; a path around the wall, its straight path, a ray along the mesh stopped by the wall; a crowd of four walked
  through the doorway; the mesh's bytes and the crowd's places pinned and the same on every row; the adapted
  constants; the export audit; the default template from an installed copy with a strict build.
• This index: consumer tests/mwrap/recastnavigation-path (the same pinned hashes); the installed-template check
  with --deploy (STATIC_NOTICES).