1.0.0-rc.4

This release candidate focuses on SQL Tools Service installation, failure
reporting, and reliable Object Explorer workflows ahead of sqlserver.nvim
1.0.0.

Fixed

• Pass download and extraction values through PowerShell environment variables
  so managed SQL Tools Service installation supports Windows paths containing
  shell metacharacters.
• Return asynchronous installation and configuration failures through the
  setup() callback instead of only displaying an error notification.
• Wait for SQL Tools Service object-scripting completion so failed or empty
  definition scripts report an error instead of opening a definition buffer.
• Refresh Object Explorer metadata from the server so explicit refreshes
  reflect schema and permission changes without retaining stale cache data.

Changed

• Run native SQL Tools Service lifecycle coverage on Linux, macOS, and Windows.
• Split Docker-backed database integration tests into core and object shards,
  merge their coverage with native-platform results, and retain process-cleanup
  assertions.
• Define next as the integration branch for future release work while keeping
  main as the released branch.

Testing

• GitHub Actions passed linting, unit tests, and native SQL Tools Service tests
  on the supported CI platforms.
• Both Docker-backed SQL Server integration shards passed on Linux, including
  SQL Tools Service process-cleanup assertions.
• The combined cross-platform coverage report completed successfully.

See the full comparison for implementation details.