Acts group charts: pooled single view (audited)

Existing charts

ActsGroupChartGenerator already emits corpus-level dialogue-act distributions via generate_acts_charts with group_aggregate_viz_ids=True, notably:

• group.acts.global_acts_pie.global

• group.acts.global_acts_bar.global (when emitted)

Counts come from reconstruct_act_counters: act-type columns summed across all session_rows (and speaker rows merged by canonical id). That is semantically pooled: the full group as one summed conversation.

Family

pooled_single_view is listed for acts to document this behavior. No duplicate pooled-only chart is added.

Not

• Temporal overlay remains a separate family (session-relative timelines).