Expose unrounded data in the restricted “latest_permutations tables

This enhancement supports the Deemed Load Shape Project

Affected users: Admins

Feature: The “latest_permutations” table of the pubic read-only Postgres database now includes unrounded measure data to provide CEDARS with higher-precision UEC data for the Deemed Load Shape Tool and avoided cost calculations and to support more accurate UES v. UEC QC. This update applies only to the restricted “latest_permutations” table; the public “permutations” table continues to follow standard rounding rules.