KreerIQ Chess — Renegade engine integration

Renegade 1.3.1, copyright (c) 2022-2026 Krisztián Peőcz. MIT License.
Upstream: https://github.com/pkrisz99/Renegade
Pinned commit: bb590fdff3d6f9763ad6aed040ee53c89faea507
The unmodified renegade-net-36.bin network is included locally.

KreerIQ port modifications: a single Web Worker, cooperative cancellation,
MultiPV search, a separate original difficulty-selection policy, network loading
from a local file, and SIMD/scalar WebAssembly builds. The upstream evaluation
and the full-strength single-PV search are preserved.

The engine and its evaluation network run entirely on the device. No remote
engine service, analytics, or runtime model download is required.

The runtime was built with Emscripten 6.0.10. Its runtime, musl, C++ libraries and
compiler support notices are included alongside this file. Incbin is not used
in this port. KreerIQ branding and original application assets retain their own
rights; MIT notices apply to the identified third-party components.