refactor: reorganize code + optimization

app/home/graph.ts

@@ -0,0 +1,24 @@
+interface Node {
+	key: string
+	outs: Record<string, Connection>
+}
+
+interface Entry {
+	name: string
+	stages: Node["key"][]
+}
+
+interface Connection {
+	nodeKey: Node["key"]
+	weight: number
+}
+
+const DEFAULT_NODE = {
+	applicationSubmittedNode: {
+		key: "Application submitted",
+		outs: {},
+	},
+} as const
+
+export { DEFAULT_NODE }
+export type { Node, Entry, Connection }