v1.0.2

Added

• Added an independently versioned CMake SharedMemoryStore 0.1.0
  distribution with a C++20 protocol core, Windows and Linux adapters,
  fixed-width C ABI 1.0, move-only C++ RAII wrappers, install/export rules,
  native tests, a clean-consumer project, and a basic sample.
• Added the independently versioned Python shared-memory-store 0.1.0
  distribution sources for Python 3.10 or newer. Its standard-library ctypes
  API loads the packaged native library and exposes context-managed stores,
  leases, reservations, recovery, bounded waits, and diagnostics.
• Added canonical language-neutral specifications and conformance fixtures for
  mapped layout 1.2 and resource naming 1, plus a complete ordered 3x3
  .NET/C++/Python interoperability harness.

Fixed

• Corrected managed Linux opening of an existing store so the actual backing
  file is mapped before layout validation; mismatched capacities now report
  IncompatibleLayout instead of a mapping failure.
• Made the managed implementation reject non-64-bit or non-little-endian
  processes with UnsupportedPlatform before opening platform resources.

Packaging

• Updated the release workflow to Node 24-based immutable action pins while
  retaining trusted NuGet publishing and draft-first GitHub release behavior.

Security

• Restricted Python native loading to the library packaged beside its modules;
  it does not search the current directory, PATH, or system library paths.
• Preserved the trusted same-host participant boundary across all three
  implementations; no implementation claims protection from a malicious writer
  that already has legitimate access to the shared resources.

Validation

• Validated native configure, build, CTest, install, clean CMake consumption,
  Python source and installed-wheel behavior, and ordered .NET/C++/Python
  interoperability on Windows x64 and Linux x64.
• Validated mixed lifecycle, bounded-contention, crash-recovery, diagnostics,
  Linux ownership cleanup, protocol fixtures, package consumption, and existing
  managed regression scenarios.

Compatibility

• NuGet SharedMemoryStore advances to 1.0.2 while preserving the managed
  public API, status values, .NET BCL-only runtime dependency surface, mapped
  layout 1.2, and resource naming 1.
• CMake SharedMemoryStore and Python shared-memory-store remain independently
  versioned 0.1.0 alpha sibling distributions. They are not included in the
  NuGet package, and this release does not publish them to PyPI or a native
  package registry.
• All three runtimes interoperate through mapped layout 1.2 and resource
  naming 1; the native and Python distributions use C ABI 1.0.