fix: NullPointerException in Catalog Validation when there is a phase mismatc... - #2308

Fixes #1945

Root cause

Validation messages dereference plan.getCatalog() on a deserialized catalog whose root is null

Changes

• Build the 'version' portion of the phase-shape and phase-duration validation messages from the StaticCatalog being iterated (its effectiveDate survives Externalizable cloning) instead of plan.getCatalog().getEffectiveDate(), which is null on the cloned catalog produced in DefaultCatalogUserApi.validateCatalogInternal. Added a regression test plus two minimal catalog versions with a mismatched final phase.