Toppay 採用 Laravel 標準資料夾結構，並以模組化設計強化擴展性、支付流程與 UI 元件。
Toppay follows Laravel's standard folder structure, enhanced with clean modular separation for scalability, payments, and UI components.
app/ — 包含所有核心邏輯、服務、隊列、事件與商業功能。
app/ — All core logic, services, jobs, events, and business features.
Http/Controllers — 控制器邏輯（對應路由）。
Http/Controllers — Route-facing controller logic.
Http/Middleware — 自訂中介層。
Http/Middleware — Custom middlewares.
Http/Requests — 表單驗證邏輯。
Http/Requests — Form request validations.
Models — Eloquent 模型類。
Models — Eloquent model classes.
Enums — 狀態、類型等 Enum 常數。
Enums — Enum-based constants for status, types, etc.
Observers — 模型事件處理器。
Observers— Model event handlers.
Payment/ — 依支付閘道分類，如 Stripe, PayPal, Mollie, etc.
Payment/ — Structured by gateway: Stripe, PayPal, Mollie, etc.
Services — 可重複使用的服務類，如貨幣轉換、會員等級等。
Services — Reusable service classes like currency converters, user rank, etc.
Notifications — 系統通知（郵件、SMS、推播）。
Notifications — System notifications (mail, SMS, push).
Mail — 自訂郵件類別。
Mail — Custom mailable classes.
routes/ — Web 與 API 路由檔案。
routes/ — Web and API route files.
resources/views — Blade 視圖：後台、前台、元件、郵件。
resources/views — Blade views structured by backend, frontend, components, and emails.
resources/lang — 多語系字串。
resources/lang — Localization strings.
resources/structure/page_component — 動態頁面元件定義。
resources/structure/page_component — Dynamic page component definitions.
config/ — 應用層設定檔案。
config/ — All app-level configuration files.
public/ — 公開資源與入口檔（index.php）。
public// — Public assets and entry point (index.php).
database/ — Migrations, factories, seeders.
database/ — Migrations, factories, seeders.
storage/ — 日誌、快取視圖、檔案上傳。
storage/ — Logs, cached views, file uploads.
vendor/ — Composer 依賴。
vendor/ — Composer dependencies.
.env — 應用環境設定。
.env — App-specific environment config.
composer.json — PHP 套件依賴。
composer.json — PHP dependencies.
artisan — Laravel CLI 入口。
artisan — Laravel CLI entry point.
README.md —（可選）安裝或更新紀錄說明。
README.md — (Optional) installation or changelog info.