enrich-contactlisted

# Enrich Contact Resolve one person to an Explorium prospect_id and return their full enriched profile in a single pass. ## Input The user will supply one of: - An email address (e.g. `jane@acme.com`) - A full name plus a company name or domain (e.g. `Jane Smith at Acme Corp` or `Jane Smith @ acme.com`) - A LinkedIn profile URL (e.g. `https://www.linkedin.com/in/janesmith`) - A known Explorium `prospect_id` Optional flags the user may pass: - `--company-context` to add firmographics for the matched employer. ## Workflow 1. **Classify the identifier.** Look at the raw input and pick exactly one resolution path. Do not run multiple match strategies in parallel; pick the strongest signal first and only fall back if it returns no match. - Email present and well-formed (contains `@` and a TLD) -> path A. - LinkedIn URL (matches `linkedin.com/in/...`) -> path B. - A bare `prospect_id` (looks like an Explorium ID, not a name) -> path D, skip resolution. - Full name plus any company token -> path C. - Phone-only input -> stop and tell the user this surface is not supported (see Limitations); ask them for an email, name+company, or LinkedIn URL. 2. **Resolve to a prospect_id.** - **Path A (email):** call `match-prospects` with `email` set to the supplied address. Take the single returned `prospect_id`. - **Path B (LinkedIn URL):** call `match-prospects` with `linkedin` set to the full URL. Take the returned `prospect_id`. - **Path C (name + company):** i