Protect unsubscribe preferences across contact searches

What changed

Unsubscribed contacts are excluded from standard Contacts results by default and clearly labeled when included, helping teams respect opt-out preferences and prevent accidental outreach.

Capabilities in this update

• Exclude unsubscribed contacts from standard searches
• Show an unsubscribe status badge in the Contacts table
• Include or filter for unsubscribed contacts when needed
• Reduce the risk of contacting opted-out recipients