- tests/sealed.rs: a group declares a sealed [[routes]] template; a descendant
that suppresses it still serves the path, apply warns "sealed — no effect",
routes ls --group shows sealed=true, and sealing an [app] route is rejected.
- docs: §4.5 trust-model callout + CLAUDE.md move `sealed` from Deferred to
implemented — group templates are advisory-by-default *unless* sealed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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