feat: add native macOS menu-bar application shell (#1)

.gitignore

@@ -0,0 +1,48 @@
+# macOS metadata
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+
+# Xcode per-user state and source-control metadata
+xcuserdata/
+*.xcuserstate
+*.xccheckout
+*.xcscmblueprint
+
+# Local build products and diagnostics
+/DerivedData/
+/build/
+/.build/
+/Archives/
+*.app/
+*.xcarchive/
+*.xcresult/
+*.dSYM/
+*.dSYM.zip
+
+# SwiftPM local workspace state (keep Package.resolved)
+.swiftpm/
+
+# Distribution packages
+*.dmg
+*.pkg
+
+# Local editor configuration and temporary files
+.idea/
+*.swp
+*.swo
+*~
+
+# Local secrets and signing material (keep example configuration)
+.env
+.env.*
+!.env.example
+!.env.*.example
+*.p12
+*.pfx
+*.p8
+*.mobileprovision
+*.provisionprofile
+
+# Shared Xcode schemes, asset catalogs, SVG sources and lockfiles are versioned.