Release v1.0.6

Changes

• Fix logging through downstream const char* format bridge with std::format_args
  • Dynamic (non-literal) format strings are now copied into the internal string queue so they remain valid across the async writer boundary
  • Dynamic format strings now support arguments instead of requiring zero args
• Fix string queue copy path to null-terminate using explicit payload length
• Add regression test for const char* + std::format_args bridge logging