refactor(create-expert): remove untestable time-based criteria

[FL4TLiN3]

Summary

Removes time-based criteria that cannot be verified in automated testing.

Removed Criteria

Location	Removed
Setup template	"Target: Complete setup in under 2 minutes"
Design principles	"Setup expert should complete in < 2 minutes"
Usability properties	"Setup completes in under 2 minutes"
Usability properties	"New users succeed within 5 minutes"

Replacement Criteria

Before	After
"Setup efficiency: Setup completes in under 2 minutes"	"Setup is straightforward: Setup detects missing config and guides user"
"Fresh user success: New users succeed within 5 minutes"	"First-run clarity: Instructions are clear enough for copy-paste execution"

Why Time-Based Criteria Are Problematic

1. Environment variability - Clock time varies by system
2. Cannot simulate users - No way to define "new user" behavior
3. Not automatable - Can't measure human time in automated tests

Closes #384

Test plan

• CI passes
• No behavior changes expected

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Note

Documents a patch release for create-expert that removes untestable time-based criteria.

• Adds .changeset/refactor-384-remove-time-criteria.md declaring a patch for create-expert and stating the removal

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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