List Experiments

Per-experiment cards for the hotel-level portfolio page.

ai_visibility_rate is the equal-cell AI Visibility Rate over the inclusive selected range [start_date, end_date] — the SAME definition, canonical run selection, and manual fallback the experiment Overview uses — with a strict-composition visibility_delta vs the immediately-preceding equal day-count period, a canonical daily daily series, per-provider provider_visibility, and the usable_responses count, all from compute_experiment_card_summaries in a fixed number of batched queries (no per-card Overview calls, no Trends row-pooling). last_run_at is the real last completed-run time. title may be None — the UI falls back to "Experiment N". group_id carries the experiment's optional group (None when ungrouped) so the portfolio page can partition Groups from standalone Experiments without a second read; it costs no extra query and nothing about a group is aggregated here.