Add frontend, backend and CLI

backend/src/models/membership.ts

@@ -0,0 +1,46 @@
+import { Schema, model, Types } from 'mongoose';
+import { ADMIN, MEMBER, INVITED, COMPLETED, GRANTED } from '../variables';
+
+export interface IMembership {
+	_id: Types.ObjectId;
+	user: Types.ObjectId;
+	inviteEmail?: string;
+	workspace: Types.ObjectId;
+	role: 'admin' | 'member';
+	status: 'invited' | 'completed' | 'granted';
+}
+
+const membershipSchema = new Schema(
+	{
+		user: {
+			type: Schema.Types.ObjectId,
+			ref: 'User'
+		},
+		inviteEmail: {
+			type: String
+		},
+		workspace: {
+			type: Schema.Types.ObjectId,
+			ref: 'Workspace',
+			required: true
+		},
+		role: {
+			type: String,
+			enum: [ADMIN, MEMBER],
+			required: true
+		},
+		status: {
+			// INVITED, COMPLETED, GRANTED
+			type: String,
+			enum: [INVITED, COMPLETED, GRANTED],
+			required: true
+		}
+	},
+	{
+		timestamps: true
+	}
+);
+
+const Membership = model<IMembership>('Membership', membershipSchema);
+
+export default Membership;