Two journeys against a live server + Postgres:
- `group_module_is_lexically_sealed_under_inheritance`: a group module +
a group endpoint that imports it, inherited by an app — proves the §5.5
trust boundary (a leaf's same-named module does NOT shadow the inherited
endpoint's import) and app-origin CoW (an app endpoint's import resolves
the app's module).
- `dangling_import_is_rejected_by_plan`: a manifest script importing a
non-existent module is a `pic plan` error.
Docs: mark §5.5 residual resolved + §11 Phase 4b ✅ in the design doc;
update CLAUDE.md current-focus (extension points are the remaining §5.5
piece).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
