Task 619: Fix Test Coverage Gaps in 3D Viewer Tests

Status: DONE

Problem

1. Ship marker E2E tests (Task 618) don't capture JS console errors — missing collectConsoleErrors calls
2. EP03/EP04/EP05 episode timeline durations not tested in unit tests (only EP01/EP02 covered)

Solution

1. Add collectConsoleErrors + expect(errors).toEqual([]) to all ship marker E2E tests
2. Add EP03/EP04/EP05 timeline.totalDays assertions to orbital-3d-viewer-data.test.ts

Files to Modify

• ts/e2e/examples.spec.ts — Add error checking to ship marker tests
• ts/src/orbital-3d-viewer-data.test.ts — Add EP03-EP05 timeline duration tests