Breaks the monolithic planner.test.ts (581 lines, 25 tests) into five
focused files grouped by feature area, with BRouter mocked by default
via test.beforeEach in files that need routing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Main specs (7): Converted from delta format (## ADDED/MODIFIED) to
proper main spec format (## Purpose + ## Requirements)
Changes (3): Added missing spec files for e2e-test-reorganization,
journal-poi-details, and mobile-nearby-sync
Mobile testing: Added missing scenario for "No Vitest" requirement
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
