v1.0.1

Packaging

• Added Linux and Windows GitHub Actions validation and a manually triggered,
  trusted-publishing release workflow for NuGet.org and GitHub Releases.
• Added portable .snupkg symbols to improve package debugging without growing
  the primary package.

Fixed

• Enforced one caller-selected wait budget across same-handle synchronization,
  Linux lifecycle locking, and shared store locking.
• Replaced destructive key-index rebuilds with crash-safe backward-shift
  compaction and duplicate-tolerant cleanup.
• Made Linux owner metadata replacement atomic and resistant to PID reuse, and
  prevented failed opens from leaving live-looking owner records.
• Rejected layout dimensions whose index, alignment, or section calculations
  cannot be represented safely.
• Moved stores that detect usage-count underflow into shared safe error mode.
• Prevented Windows mapping-handle leaks when view creation fails and removed
  process-local Linux lock registry growth after handles are disposed.
• Matched Windows Global\ mapping names with global synchronization so
  cross-session participants cannot mutate one mapping under different mutexes.
• Made segmented publish use one synchronized operation so bounded contention
  cannot strand an internal reservation.

Security

• Linux shared-memory directories now use owner-only 0700 permissions and
  region, synchronization, owner, and lifecycle files use owner-only 0600
  permissions.

Compatibility

• Public API names, status values, and shared-memory layout remain compatible
  with the 1.0.0 production contract.