verify-browser-sessions

Read docs/browser-sessions.md for authority and geometry constraints. Run only the affected check from the repo root:

pnpm exec vitest run apps/browser-runtime/src/browser/editing.test.ts
pnpm exec vitest run apps/browser-runtime/src/browser/navigation.test.ts
pnpm exec vitest run apps/browser-runtime/src/browser/agent-cursor.test.ts
pnpm test:integration apps/host/src/browser/browser-editing.integration.test.ts
pnpm --filter @opensteer/web test:browser-navigation
pnpm --filter @opensteer/web test:agent-cursors
pnpm --filter @opensteer/web test:browser-downloads

For a real Electron boundary, use the repository's disposable VM workflow; never drive host Electron. Select the affected journey: