chore: add M&M config to internal template

[metal-messiah]

Allow M&M's to run internally via experiment by adding the flag for NR1

Overview

Related Issue(s)

Testing

[github-actions]

Asset Size Report

Merging this pull request will result in the following asset size changes:

Agent	Asset	Previous Size	New Size	Diff
lite	loader	30.48 kB / 11.03 kB (gzip)	30.48 kB / 11.03 kB (gzip)	0% / 0% (gzip)
lite	async-chunk	51.57 kB / 16.74 kB (gzip)	51.57 kB / 16.74 kB (gzip)	0% / 0% (gzip)
pro	loader	51.5 kB / 17.79 kB (gzip)	51.5 kB / 17.79 kB (gzip)	0% / 0% (gzip)
pro	async-chunk	99.71 kB / 30.47 kB (gzip)	99.71 kB / 30.47 kB (gzip)	0% / 0% (gzip)
spa	loader	59.15 kB / 20.16 kB (gzip)	59.15 kB / 20.16 kB (gzip)	0% / 0% (gzip)
spa	async-chunk	114.78 kB / 34.82 kB (gzip)	114.78 kB / 34.82 kB (gzip)	0% / 0% (gzip)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.60%. Comparing base (b5e4c6d) to head (960e0c9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1204   +/-   ##
=======================================
  Coverage   88.60%   88.60%           
=======================================
  Files         168      168           
  Lines        7334     7334           
  Branches     1501     1501           
=======================================
  Hits         6498     6498           
  Misses        713      713           
  Partials      123      123           

Flag	Coverage Δ
unit-tests	78.99% <ø> (ø)

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