[node] begin the great typescript rewrite

nodejs/model/contract.ts

@@ -0,0 +1,22 @@
+export type Contract = {
+	id: string;
+	factionSymbol: string;
+	type: string;
+	terms: {
+		deadline: Date;
+		payment: {
+			onAccepted: number;
+			onFulfilled: number;
+		},
+		deliver: Array<{
+			tradeSymbol: string;
+			destinationSymbol: string;
+			unitsRequired: number;
+			unitsFulfilled: number;
+		}>;
+	};
+	accepted: boolean;
+	fulfilled: boolean;
+	expiration: Date;
+	deadlineToAccept: Date;
+};