docs(skills): keep type units and meaningful orders when ordering by reach

[mpyw]

Summary

Applying "Order by reach" to 14 repositories showed gaps in the rule. This PR fixes them in declscope-authoring.

Gap seen	Example	Change
Ordering a run of types separated a type from its constructor	gormreuse: ignoreEntry landed between IgnoreMap and BuildIgnoreMap	A type and the constructors and methods right after it are one unit, moved as a whole at the type's reach
A sequence ran across a section comment	suve: // Param Types	Section comments bound a sequence. Order inside each section
Ordering constants broke a flow order, and comments that introduced a group ended up after it	paypay bridge: step names, page labels	A new "Keep an order the reader relies on" paragraph: steps in run order, values that follow an outside order, introducing comments

declscope does not check any of this. It is guidance only.

Verification

• go test . passes. The skills are embedded.

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.02%. Comparing base (98df2dc) to head (bfe15bc).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #189   +/-   ##
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  Coverage   99.02%   99.02%           
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  Files          50       50           
  Lines        4214     4214           
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  Hits         4173     4173           
  Misses         41       41           

Flag	Coverage Δ
unittests	99.02% <ø> (ø)

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