Make the v2 path both correct and performant for turning the flag on:
- findRuns gains an optional tables: "legacy" | "both" scope (mirroring findRun),
threaded through hydrateChildRuns/hydrateParentAndRoot. While an org is not on
v2 its runs only live in TaskRun, so callers pass "legacy" to skip the empty
task_run_v2 query.
- ApiRetrieveRun resolves parent/root and children in parallel (one round-trip
instead of two) and scopes the reads to legacy for non-v2 orgs, so the public
run-retrieve no longer pays an extra both-table query on every call.
- The run-inspector side panel resolves parent/root by id across both tables
(was a table-bound relation select that returned null for a cross-table parent
in the mixed window).
- recover-stuck-runs joins TaskRunExecutionSnapshot against TaskRun UNION
task_run_v2 so a stuck v2 run is found and re-enqueued.
Dan Sutton
5e5577ab90