NetWasm v0.5.0

What's Changed

• Split compiler tests across CI runners by @zion-sati in #16
• Document the roadmap to NetWasm 1.0 by @zion-sati in #17
• Cut CI latency with impact gates and reusable qualification by @zion-sati in #18
• Add focused CI infrastructure validation by @zion-sati in #19
• Document pull request CI lanes by @zion-sati in #20
• Build release candidates once for preview and stable by @zion-sati in #21
• Promote stable releases from retained candidates by @zion-sati in #22
• Pass trusted publishing credential to NuGet by @zion-sati in #23
• Resume preview releases from retained trains by @zion-sati in #24
• Coordinate dependency-ordered releases by @zion-sati in #28
• Authenticate Playground and website delivery by @zion-sati in #29
• Add release train rehearsal by @zion-sati in #30
• Add bounded caching, lean enum metadata, full CI, and CLA by @zion-sati in #31

Full Changelog: v0.4.3...v0.5.0