Add non-destructive friction log hiding

[calvin-archastro]

Summary

• add Hide actions to friction-log rows and detail views
• persist hidden logs by stable worktreePath::slug identity without modifying files on disk
• filter hidden logs from the normal UX across rescans and relaunches
• add Settings controls to restore one or all hidden logs
• distinguish an empty catalog from the all-hidden state

Verification

• xcodebuild -project macos/Astroshots.xcodeproj -scheme Astroshots -configuration Debug -derivedDataPath macos/build/DerivedData-hide-friction -skipPackagePluginValidation -only-testing:AstroshotsTests test CODE_SIGNING_ALLOWED=NO — 62 tests passed
• unsigned Release build passed for arm64 and x86_64
• the new UI journey compiles; local execution is blocked before test launch because the Xcode runner and test bundle use incompatible ad-hoc Team IDs when no DEVELOPMENT_TEAM is configured