7948ca7da3
- Add dropdown state for date filters (selected_initiated, selected_last_seen) - Add date_filter_id computed property combining the two selections - Add load_pathway_data() method to query pathway_nodes table - Add recalculate_parent_totals() for filtered hierarchies - Update all filter handlers to call load_pathway_data() - Update KPI calculations from root node data Phase 3 Reflex integration: Task 3.1 complete