Release v2.5.0

✨ Features

• feat(install): include nushell in shell-not-detected error (3ebf18c)
• feat(shell): add Nushell init snippet + variant (305465e)

🐛 Bug Fixes

• fix(install/rc): handle CRLF in source_line trim for Windows CI (b9760a0)
• fix(install/rc): trim trailing newline when embedding source_line (c7a8051)

📝 Other Changes

• chore: bump version to v2.5.0 (98365f0)
• docs: document Nushell in manual rc-edit examples (280fa76)
• test(install/rc): verify Nushell inline-snippet embedding (9a91371)
• test(shell): cover Nushell across the shell module test suite (ec6987b)
• chore(deps)(deps): bump sysinfo from 0.39.0 to 0.39.2 (4761da0)
• chore(deps)(deps): bump ratatui-image from 11.0.1 to 11.0.2 (678cb62)
• chore: update flake.nix hashes for v2.4.0 (a40cd99)