- fix: fragments are hidden in the add-step dialog when the target edge is
inside a foreach/loop/optional-group (they expand to top-level subgraphs
and cannot splice into a template-child edge), and
spliceInsertedSubgraphOnEdge now refuses container-internal edges as a
second line of defense (Greptile P1 x2).
- test: add-step modal container-target hiding, multi-entry/exit splice
fan-out, internal-cycle entries fallback, ambiguous merge-inbound
lifecycle fallback, and edge-targeted "as optional group" wiring
(CodeRabbit nitpicks).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
