fix: correct remaining --auto mismatches

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes 🐛 Bug: Migrating an existing package.json shouldn't remove "bin/" entry from "files" #934; fixes 🛠 Tooling: Use --auto in end-to-end migration test #1157; fixes 🐛 Bug: --auto doesn't copy all defaults #1613
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Fills in a lot of logic around defaults that was previously not hooked up. --auto now completely works as expected in this repository.

💖

[codecov]

Codecov Report

Attention: Patch coverage is 98.36066% with 2 lines in your changes missing coverage. Please review.

Project coverage is 97.77%. Comparing base (d502d3e) to head (2f2e3ed).
Report is 115 commits behind head on main.

Files	Patch %	Lines
.../shared/options/createOptionDefaults/index.test.ts	97.95%	1 Missing ⚠️
src/shared/options/createOptionDefaults/index.ts	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1612      +/-   ##
==========================================
- Coverage   98.09%   97.77%   -0.32%     
==========================================
  Files         102      174      +72     
  Lines        5764     9728    +3964     
  Branches      491      953     +462     
==========================================
+ Hits         5654     9512    +3858     
- Misses        109      215     +106     
  Partials        1        1              

Flag	Coverage Δ
create	70.83% <38.09%> (+0.11%)	⬆️
initialize	44.32% <59.52%> (+0.01%)	⬆️
migrate	71.65% <61.90%> (+0.98%)	⬆️
unit	90.50% <98.30%> (+11.99%)	⬆️

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[github-actions]

🎉 This is included in version v1.67.3 🎉

The release is available on:

• GitHub releases
• npm package (@latest dist-tag)

Cheers! 📦🚀