v0.4.0

What's Changed

• Post-review hardening: two leaks, a real collection in the tree, and the two missing test suites by @Matixx22 in #21
• test(platform): make temp dir helper collision-safe by @Matixx22 in #22
• docs: drop em dashes, tighten the changelog by @Matixx22 in #23
• fix: close the reuse-map, fingerprint and LAPS gaps by @Matixx22 in #24
• feat(platform): add Windows support by @Matixx22 in #25
• chore: cut 0.4.0 by @Matixx22 in #26

Full Changelog: v0.3.0...v0.4.0