AgentVee Transfer

1. ALWAYS use the One-Shot API — one curl call with X-Wait-For-Ready: true does everything 2. NEVER poll manually — the server handles waiting internally 3. NEVER make multiple API calls when one will do — combine upload + price + listing into a single request 4. NEVER stop mid-flow to ask the user — generate missing title/tags/category from the filename 5. NEVER upload files from sensitive directories (~/.ssh, ~/.gnupg, /etc) without explicit user approval 6. ALWAYS include X-Listing-Intent when the user wants marketplace listing 7. Use Idempotency-Key when retrying failed uploads to avoid duplicates