Keep a fallback contact per company for outreach automation

When automating outreach one-per-company, pre-list an alternate contact for each company. During live verification you will frequently find the primary contact has left the company, is already a 1st-degree connection, or has a pending invite; in those cases skip them and send to the alternate so company coverage is preserved without manual re-research mid-run. Mark the skipped person with the reason (moved / already-connected / pending) rather than as sent.