The first revision opened the planner session URL without waypoints,
so the in-browser Yjs doc was empty, no route was computed, and the
Save button shipped an empty GPX → journal callback returned 400 →
\"Saved!\" never appeared and the test timed out.
The real journal→planner handoff (in
\`apps/journal/app/routes/api.routes.\$id.edit-in-planner.ts\`) encodes
the planner's session-creation response (initialWaypoints / noGoAreas /
notes) as URL query params on the redirect. The test now mirrors that,
passing a 2-waypoint encoded blob via the \`?waypoints=\` param.
Also mocks BRouter via the existing \`mockBRouter(page)\` fixture so the
route compute is deterministic — \`planner-coloring.test.ts\` uses the
same pattern. Otherwise the test would race against a real BRouter
cold-start on CI.
Asserts canvas is visible before clicking Save (proxy for \"routeData
is populated\" — the same condition that gates a non-empty GPX in
\`SaveToJournalButton\`).
206f58b1b9