feat: drop node on edge

Closes #13

app/src/lib/graph-interface/debug/store.ts

@@ -1,6 +1,8 @@
-import { writable } from "svelte/store";
-import { Vector3 } from "three/src/math/Vector3.js";
+import type { Box } from '@nodarium/types';
+import { writable } from 'svelte/store';
+import type { Color } from 'three';
+import { Vector3 } from 'three/src/math/Vector3.js';
 
 export const points = writable<Vector3[]>([]);
-
-export const lines = writable<Vector3[][]>([]);
+export const rects = writable<Box[]>([]);
+export const lines = writable<{ points: Vector3[]; color?: Color }[]>([]);