v0.4.0

What's Changed

• chore: synchronize v0.3.3 lockfile by @gcomneno in #42
• docs: add product readiness assessment by @gcomneno in #44
• fix: enforce source and destination path invariants by @gcomneno in #53
• fix: make apply failure-aware and recoverable by @gcomneno in #54
• fix: define symlink and hidden-file policy by @gcomneno in #55
• fix: harden content-inspection failure handling by @gcomneno in #56
• feat: clarify classification overrides and reasons by @gcomneno in #57
• feat: add ordinary-user installation and release path by @gcomneno in #58

Full Changelog: v0.3.3...v0.4.0