chore: migrate core interfaces and utilities to ESM

[mostafaNazari702]

PR Checklist

• Addresses an existing open issue: partial 🛠️ Repo: Switch from CJS to ESM internally #5400
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Phase three of the migration to ESM.

[mostafaNazari702]

@mark-wiemer test files received forced path-only adjustments only. Which indirectly has to go against your "...Except the test files!..."-instruction.

[codecov]

Codecov Report

❌ Patch coverage is 57.89474% with 16 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.95%. Comparing base (f6a62ca) to head (99325a4).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/interfaces/bdd.mjs	0.00%	4 Missing ⚠️
lib/interfaces/qunit.mjs	0.00%	4 Missing ⚠️
lib/interfaces/tdd.mjs	0.00%	4 Missing ⚠️
lib/cli/one-and-dones.mjs	0.00%	2 Missing ⚠️
lib/interfaces/common.mjs	0.00%	1 Missing ⚠️
lib/test.mjs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5930      +/-   ##
==========================================
- Coverage   88.14%   80.95%   -7.20%     
==========================================
  Files          65       64       -1     
  Lines        4615     4579      -36     
  Branches      976      978       +2     
==========================================
- Hits         4068     3707     -361     
- Misses        547      872     +325     

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[mark-wiemer]

Looks great! integration failure is known issue (#5361), requires failure is Codecov transient failure.

[mark-wiemer]

Gonna walk the dog and hope I didn't break anything. Thanks again!

[mark-wiemer]

@mark-wiemer test files received forced path-only adjustments only. Which indirectly has to go against your "...Except the test files!..."-instruction.

@mostafaNazari702 you did exactly what I wanted :) the test files need to be changed, but it's not a priority right now to convert them to ESM. Good work :)

[mark-wiemer]

Failure is a known issue, merging :)