Jj Hierarchical Data Management

@dmccarty30/journeyman-jobs-hierarchical-data-management

Design hierarchical data structures for electrical trades platform. Covers IBEW organizational hierarchy (Nation→Region→Local→Jobs), job models with per diem, crew hierarchies, job aggregation pipelines, offline-first sync, territory-based queries, and multi-level caching. Use when designing data models, implementing offline sync, or structuring territorial data.