v2.18.0

Maintenance release — nothing changes in how ClipMenu works day to day.

• Much broader automated test coverage. Unit tests grew from 147 to 313, lifting coverage from ~19% to ~74% across the SwiftUI settings panes, drag-to-reorder, and backup/restore — so future changes stay safe.
• Housekeeping. Removed unused App Store paywall strings across all 7 localizations and bumped CI tooling.

What's Changed

• test: expand unit coverage 18.8%→39.3% (147→313 tests) by @teddychan in #42
• test: SwiftUI panes, drag-reorder & backup/restore coverage (39%→74%) by @teddychan in #43
• v2.17.11 — maintenance release (test coverage 39%→74%) by @teddychan in #44
• ci: bump actions/upload-artifact to v7.0.1 (Node 24) by @teddychan in #41
• chore: remove dead App Store paywall strings (all 7 localizations) by @teddychan in #45
• chore: bump version to 2.18.0 for Mac App Store submission by @teddychan in #46

Full Changelog: v2.17.10...v2.18.0