Adds the AutoFill Credential Provider Extension target (App Group +
Keychain Sharing capabilities, autofill-credential-provider
entitlement), removes the leftover SwiftData bootstrap from
MyPassApp.swift now that Item.swift is gone, and switches the bundle
ID / App Group / Keychain group prefix from com.christophevila to
org.antiloop222 to match the project's existing identifier.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WYqycDFsynHH9VnnK7LNSf
