- `shared` column in `pic triggers ls --group` (TriggerTemplateInfo + DTO +
report + renderer).
- manager-core/tests/shared_triggers.rs: a shared write matches the group's
shared trigger and NOT a same-named per-app trigger; a per-app write matches
the app trigger and NOT the shared one (the `shared` flag is the boundary).
- shared_triggers journey: declarative authoring applies, ls --group shows
shared, an undeclared-collection shared trigger + an app shared trigger are
rejected.
- docs: §11.6 + CLAUDE.md move shared-collection triggers from Deferred to
implemented.
Completes M2. (Pre-existing async-dispatcher timing flakes pass in isolation.)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
