feat: remove path alias.

feat: remove Webpack and depend on nodemon.
feat: refactoring expenses.
feat: optimize system users with caching.
feat: architecture tenant optimize.

server/src/system/repositories/SubscriptionRepository.ts

@@ -0,0 +1,21 @@
+import { Service, Inject } from 'typedi';
+import SystemRepository from "system/repositories/SystemRepository";
+import { PlanSubscription } from 'system/models'
+
+@Service()
+export default class SubscriptionRepository extends SystemRepository{
+	@Inject('cache')
+	cache: any;
+
+	/**
+	 * Retrieve subscription from a given slug in specific tenant.
+	 * @param {string} slug 
+	 * @param {number] tenantId 
+	 */
+	getBySlugInTenant(slug: string, tenantId: number) {
+		const key = `subscription.slug.${slug}.tenant.${tenantId}`;
+		return this.cache.get(key, () => {
+			return PlanSubscription.query().findOne('slug', slug).where('tenant_id', tenantId);
+		});
+	}
+}