External Drive Ingest Planning Use this when planning a safe ingest from an external drive into or another persistent data mount. The class of task is not just "mount the drive"; it is source-preserving, provenance-tracked data migration with staged copy and dedupe/merge risk controls . Class-first trigger A drive or mounted folder contains legacy/project/reference data that must be mapped into durable repo-aligned destinations, copied safely, and tracked through GitHub before any destructive or ambiguous operation. Core principles 1. No file operations before decisions are locked. Ask/resolv…