[Makiras]

Linux users need portable packages with a consistent toolchain distribution name. Publish this repository as uc-xcomm, while retaining import xspcomm, the native SDK paths and libxspcomm.so ABI.

• Build four Linux x86-64 wheels (CPython 3.11/3.12 × GLIBC 2.17/2.28) and one sdist from the same source archive.
• Default local/pip source builds to XSPCOMM_NATIVE=ON; explicitly use -march=x86-64 -mtune=generic for distributed wheels. swig>=4.2.1,<5 is an isolated build dependency. Source-install CI covers Python 3.11/3.12 with the latest SWIG allowed by that range.
• Fix installed SDK discovery and manylinux2014 C++11 ABI compatibility. Check Python bindings, strings, containers, callbacks and exceptions against the installed SDK, including the modern Ubuntu host compiler.
• Preserve the existing merged-PR version/tag flow. Publish verified assets to GitHub Releases, then PyPI using Trusted Publishing.
• Update metadata checks, README and bilingual installation/release documentation for uc-xcomm.

Validation: Built and installed the updated sdist under Python 3.12 with an isolated swig==4.2.1 build constraint. All 11 native tests, native CPU-flag checks, Python binding and public C++ SDK checks, and pip check passed. Documentation checks (50 pages, 212 local links), four release-policy tests, workflow/TOML parsing and git diff --check passed. CI retains the four-wheel matrix and two Python source-install jobs, without a separate SWIG version matrix. Companion Picker/Toffee packages require uc-xcomm>=1.1,<2; local integration uses test-only version 1.1.0.

Before publishing, configure a pending PyPI publisher: project uc-xcomm, owner XS-MLVP, repository xcomm, workflow release.yml, environment pypi; create the matching GitHub environment. No API token is needed. Release uc-xcomm before the dependent uc-picker and uc-toffee packages. No release has been published by this PR.