MAPL: fix vector component naming lifecycle

[pchakraborty]

Summary

Fix vector component naming flow so VectorClassAspect consistently uses resolved component names.

Changes

• In VariableSpec, pass resolved vector_component_names into VectorClassAspect instead of this%vector_component_names.
• In VectorClassAspect create path, set each component field name immediately after payload retrieval using this%short_names.
• Remove deferred component renaming from add_to_state.

Why

This prevents incorrect or missing component names when fallback/default vector names are used and keeps naming behavior consistent across lifecycle stages.

Testing

• Verified staged diff for VariableSpec and VectorClassAspect changes.
• No full build/test run performed in this step.