Refresh d6/langgraph-python fixtures (beautiful-chat, chat-slots,
frontend-tools-async, gen-ui-{agent,custom,declarative,interrupt,open},
headless-complete, hitl-in-app, interrupt-headless, shared-state-streaming,
tool-rendering, tool-rendering-reasoning-chain, _from-feature-parity) plus
d4/langgraph-python/chat.json. Combined with the conveyance shim landed
in this branch, LGP is fixture-complete at 180 pass / 5 fail / 2 skip.
The residual 5 fails trace to react-core/v2's custom-wildcard-renderer
bug surfaced through gen-ui-interrupt (shared useInterrupt hook misbehaves
on the second interrupt; cross-integration D6 blocker, not a fixture or
conveyance defect). The 2 skips are the by-design mcp-apps iframe gap.
Move monolithic d5-all.json + feature-parity.json + smoke.json into
per-integration directories under d4/<slug>/, d6/<slug>/, and shared/.
Every fixture file is now context-scoped to enable server-side aimock
routing via match.context. Migrated 12 HITL fixtures from main's
d5-all.json additions into shared/_migrated-from-d5-all-hitl.json
for follow-up distribution into per-integration files.
Jordan Ritter