Use when a user asks to see or review their saved DC Hub shortlist in-chat (PRO). Example: "What sites have I saved?" / "Show my shortlist." — list_saved_sites. Params: none. Returns: an array of saved sites, each with name, market, lat/lon, saved DCPI score, target MW, and notes — the persistent shortlist built by save_site. Do NOT use to add a site (use save_site) or to download the list as a file (use export_dataset); this is the in-chat read-back.
Connector