Support App Store URLs when adding apps

[hubab1]

Summary

• accept either a numeric App Store ID or an HTTPS apps.apple.com URL in Add App
• extract and normalize the ID before using the existing direct lookup
• update the field label, action, help text, and validation message
• add parser coverage for the reported Mac App Store URL and invalid or untrusted inputs

Why

Mac apps may not appear in the name-search catalogue, making direct ID lookup the normal way to add them. Requiring users to manually extract the numeric ID from an App Store URL adds unnecessary friction.

Root cause

The Add App flow passed the field directly to Int64, so full App Store URLs were always rejected even though the ID was present in the URL path.

Validation

• xcodebuild test -project OpenASO.xcodeproj -scheme OpenASO -destination 'platform=macOS,arch=arm64' -derivedDataPath Build CODE_SIGNING_ALLOWED=NO
• full test suite passed
• exact mt=12 Mac App Store URL from the report is covered by a unit test