fix: log metadata differences when comparing physical and logical schema

[kallisti-dev]

Which issue does this PR close?

• Closes "Physical input schema should be the same as the one converted from logical input schema." error does not display metadata differences #19069

Rationale for this change

Differences in physical/logical schema metadata can cause aggregate physical planning to fail, but these differences are not shown in the error output.

Previous message

Error while planning query: Internal error: Physical input schema should be the same as the one converted from logical input schema. Differences: .`

Example of updated message

Physical input schema should be the same as the one converted from logical input schema. Differences:
        - field metadata at index 0 [usage_idle]: (physical) {"iox::column::type": "iox::column_type::field::float"} vs (logical) {}
        - field metadata at index 1 [usage_system]: (physical) {"iox::column::type": "iox::column_type::field::float"} vs (logical) {}.

What changes are included in this PR?

Are these changes tested?

Yes

Are there any user-facing changes?

Minor improvements to error messages.

[alamb]

Thanks @erratic-pattern -- this looks great to me ❤️

[alamb]

@erratic-pattern -- it seems like there is a small merge conflict -- can you resolve ?

[kallisti-dev]

@erratic-pattern -- it seems like there is a small merge conflict -- can you resolve ?

Done.

[alamb]

Since this is a relatively simple error message improvement I'll just merge it in now. Thanks again @erratic-pattern