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Add route interactions: click-to-split, drag-to-reshape, colored route rendering

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- Enrich BRouter response with per-point 3D coordinates and segment boundary
  tracking (EnrichedRoute interface)
- ColoredRoute component: plain, elevation gradient (green→yellow→red), and
  surface color modes with invisible wide polyline for click targeting
- Click-to-split: click on route polyline inserts waypoint at nearest point,
  mapped to correct segment via boundary indices
- MidpointHandles: draggable CircleMarkers at route segment midpoints for
  reshaping, hidden below zoom 12, opaque on hover
- Color mode toggle (select) synced via Yjs routeData
- i18n keys for color mode labels (en + de)
- Unit tests for segment boundary tracking (13 tests)
- E2E tests for enriched route response and color mode toggle

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ullrich Schäfer 2026-03-26 08:21:24 +01:00
parent 5aef99b5ce
commit ba044610b7
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openspec/specs/route-splitting/spec.md Normal file
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## Requirements
### Requirement: Insert waypoint by clicking on route
The Planner SHALL allow users to insert a new waypoint by clicking the ghost marker that appears when hovering near the route.
#### Scenario: Click ghost marker to split
- **WHEN** a ghost marker is visible on the route and the user clicks it
- **THEN** a new waypoint is inserted at the ghost marker position between the appropriate adjacent waypoints, and the route recomputes
#### Scenario: Waypoint snaps to route
- **WHEN** the ghost marker appears near the route
- **THEN** it is positioned at the closest coordinate point on the existing route geometry, not at the raw cursor position
#### Scenario: No duplicate waypoint from map click
- **WHEN** a user clicks the ghost marker to insert a waypoint
- **THEN** the map click handler is suppressed so only one waypoint is inserted (not an additional one appended at the end)
#### Scenario: Split syncs to other participants
- **WHEN** a user inserts a waypoint by clicking the ghost marker
- **THEN** all other participants see the new waypoint appear in the waypoint list and on the map via Yjs sync