Metric 20260629

[affeldt-aist]

Motivation for this change

fyi: @mkerjean @Brixfoly @hoheinzollern

Checklist

• added corresponding entries in CHANGELOG_UNRELEASED.md

• added corresponding documentation in the headers

Reference: How to document

Merge policy

As a rule of thumb:

• PRs with several commits that make sense individually and that
  all compile are preferentially merged into master.
• PRs with disorganized commits are very likely to be squash-rebased.

Reminder to reviewers

• Read this Checklist
• Put a milestone if possible
• Check labels

[affeldt-aist]

What is the right syntax for empty factories?
The CI output is indicating two syntaxes:

       > ROCQ compile theories/normedtype_theory/normed_module.v
       > File "./theories/normedtype_theory/normed_module.v", line 103, characters 0-83:
       > Error:
       > Usage: HB.factory Record <FactoryName> T & F A & … := { … }.
       > Usage: HB.factory Definition <FactoryName> T of F A := t.

We used the first one and it does not fail locally.
@Brixfoly @hoheinzollern

[affeldt-aist]

Ah, found the problem: the "of" now must be an &!