Move the 8 standalone scenarios from
packages/opencode/test/server/httpapi-query-schema-drift.test.ts into
the route-coverage exerciser as `.viaSdk(...)` scenarios. Each one
exercises a routing-aware GET through the real SDK client wired to the
in-process router, so the SDK's auto-injected `?directory=...` /
`?workspace=...` query params hit the same typed schemas as in production.
Routes now covered by `.viaSdk(...)` scenarios in the exerciser:
/session (session.list.via_sdk)
/session/{sessionID}/message (session.messages.via_sdk)
/find/file (find.files.via_sdk)
/find (find.text.via_sdk)
/file/content (file.read.via_sdk)
/experimental/session (experimental.session.list.via_sdk)
/experimental/tool (experimental.tool.list.via_sdk)
/vcs/diff (vcs.diff.via_sdk)
Standalone httpapi-query-schema-drift.test.ts deleted — its coverage
now lives in the harness alongside every other route test, single
source of truth.
149/149 scenarios pass after migration (139 existing + 2 from
proof-of-concept #26604 + 8 migrated here).
f4cb3170d4