Two import entry points: - Home page: "Import GPX" button next to "Start Planning" - In-session: drag-and-drop GPX onto the map (with confirmation) Parses GPX client-side, extracts waypoints (Douglas-Peucker) and no-go areas from extensions. Non-GPX files show error toast. Also: - Fix spec drift: non-GPX drop now shows error toast (was silent) - Add E2E tests for import button, invalid GPX, and session creation - Archive gpx-import-planner change, sync specs Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
All 85 tasks complete. Archive change to openspec/changes/archive/ and sync 9 capability specs to openspec/specs/ for future reference. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>