Haft v6.1.0

What's Changed

• fix(artifact): enforce one live decision per problem by @m0n0x41d in #52
• fix(install): REPO name for release lookup by @m0n0x41d in #57
• fix(install): tui.mjs path + README URL by @m0n0x41d in #58
• Haft/6.1.0 by @m0n0x41d in #59
• v6.1.0 — Harden the Contract by @m0n0x41d in #60
• fix: remove duplicate checkCmd declaration by @m0n0x41d in #61

Full Changelog: v6.0.0...v6.1.0