v0.3.4

[0.3.4] - 2026-07-30

Fixed

• The User-Agent reports the actual package version again. The published
  0.3.3 sent seco-labor-mcp/0.3.0 to every upstream — the version string was
  hardcoded and had been left behind by earlier bumps. The version now comes
  from the package metadata, so it can no longer drift from the package.