7ae2cd4882
Design addresses 7 issues identified in Phase 1 review: - Bulk copy column mapping (by name, intersect with destination) - Schema-qualified table names (parse tableName, QUOTENAME) - Configurable timeouts (single commandTimeoutSeconds) - JDE date sentinel (1900-01-01 default for invalid dates) - TransformingDataReader ordinal mapping (MapOrdinal on interface) - Transformer lifecycle (document single-use, no auto-dispose) - Column rename collision validation (fail-fast on duplicates) Reviewed by Codex MCP with all issues addressed.