City-Lifeline-Cockpit/dynamic-component-service-master/openspec/changes/add-bus-line-network-component/tasks.md

1. Reference and Contract

• 1.1 Inspect the Mars3D reference code and confirm the data URL and route style.
• 1.2 Inspect the GeoJSON enough to confirm feature count, geometry type, and coordinate volume.

2. Component

• 2.1 Add src/components/busLineNetworkComponent.vue with remote GeoJSON loading, coordinate projection, route sampling, line creation, and cleanup.
• 2.2 Add style controls for line width, opacity, color theme, height buckets, and pulse animation.

3. Service Integration

• 3.1 Register the component in src/dcsConfig.ts with defaults, Object3D placement, and config-panel schema.
• 3.2 Add a preview asset for the new component card.

4. Validation

• 4.1 Run the project build or report any environment/repo-wide blocker.
• 4.2 Confirm no generic preview views were modified.

5. Follow-up Data Source Refinement

• 5.1 Download the Mars3D Beijing bus GeoJSON to public/data/bj-bus.json.
• 5.2 Change defaults to load the local GeoJSON asset.
• 5.3 Replace the data source selector with URL text input plus a confirm generation action.