feat: consolidate project updates including notifications, payments, and quality improvements

- Implement comprehensive Notifications system (backend & frontend)
- Add Payments module with checkout flow and E2E tests
- Enhance AI Quiz generation and course management
- Fix linting errors across monorepo (API & Web)
- Improve test coverage (Unit & E2E for auth, courses, payments)
- Update project configuration and dependencies

Author: PhuocHoan

.github/actions/setup-node-pnpm/action.yml

@@ -14,7 +14,7 @@ inputs:
   pnpm-version:
     description: pnpm version
     required: false
-    default: '10.26.1'
+    default: '10.26.2'
   working-directory:
     description: Working directory for the project
     required: true

.github/agents/full-stack-developer.agent.md

@@ -41,7 +41,6 @@ You are an expert Full Stack Developer specializing in the Learnix stack: **Reac
 - **Build**: Vite 7.
 - **Styling**: Tailwind CSS v4 (CSS-first configuration).
 - **State/Data**: TanStack Query v5.
-- **UI Library**: Shadcn UI.
 - **Testing**: Vitest.
 - **Deployment**: Vercel (static hosting).
 - **Reference**: Follow `.github/instructions/frontend.instructions.md`.

.github/instructions/frontend.instructions.md

@@ -32,8 +32,7 @@ applyTo: '**/*.{tsx,jsx,ts,js,css}'
 
 1.  **CSS-First**: Use the new CSS-first configuration approach.
 2.  **Utility-First**: Prefer utility classes over custom CSS.
-3.  **Shadcn UI**: Use Shadcn UI components as the base for the design system. Customize via `tailwind.config.js` (or CSS variables in v4).
-4.  **Responsive**: Use mobile-first responsive design (`sm:`, `md:`, `lg:`).
+3.  **Responsive**: Use mobile-first responsive design (`sm:`, `md:`, `lg:`).
 
 ## Accessibility (A11y)
 

.github/prompts/generate-commit.prompt.md

@@ -43,7 +43,7 @@ You are a Git expert. Please analyze the staged changes and generate a well-stru
 | `dashboard` | Dashboard module                   |
 | `db`        | Database/TypeORM changes           |
 | `api`       | API endpoints                      |
-| `ui`        | UI components (Shadcn, Tailwind)   |
+| `ui`        | UI components (Tailwind)           |
 | `deps`      | Dependencies                       |
 | `config`    | Configuration files                |
 | `docker`    | Docker/containerization            |

.github/workflows/security.yml

@@ -90,7 +90,7 @@ jobs:
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
         with:
-          version: 10.26.1
+          version: 10.26.2
 
       - name: Audit ${{ matrix.project }}
         working-directory: ${{ matrix.project }}

.prettierrc

@@ -1,11 +1,13 @@
 {
   "singleQuote": true,
   "trailingComma": "all",
-  "tabWidth": 2,
   "semi": true,
+  "tabWidth": 2,
   "printWidth": 80,
   "endOfLine": "lf",
   "arrowParens": "always",
   "bracketSpacing": true,
-  "jsxSingleQuote": false
+  "proseWrap": "preserve",
+  "htmlWhitespaceSensitivity": "css",
+  "embeddedLanguageFormatting": "auto"
 }

README.md

@@ -1,15 +1,26 @@
 # Learnix
 
-Online learning platform built with React, NestJS, and Turborepo.
+Online learning platform built with React 19, NestJS 11, and Turborepo.
+
+## Project Status
+
+**Final Release (Week 5)** - Feature Complete
+
+- **Auth**: Login, Signup, Google OAuth, Role-based Access (Guest/Student/Instructor/Admin)
+- **Guest**: Browse, Search, Filter, Sort, Course Details (Locked Content)
+- **Student**: Dashboard, Enrollment, Lesson Viewer (Text/Video), Progress Tracking, Instant Quizzes
+- **Instructor**: Dashboard, Course/Lesson Management, Manual & AI-Generated Quizzes
+- **Admin**: User Management, Course Moderation, System Statistics
+- **Advanced**: Embedded IDE (Python/JavaScript) for coding lessons
 
 ## App URL
 
-- Github Repo: https://github.com/PhuocHoan/Learnix
-- Vercel: https://learnix-teal.vercel.app
+- **Github Repo**: <https://github.com/PhuocHoan/Learnix>
+- **Vercel**: <https://learnix-teal.vercel.app>
 
 ## Structure
 
-```
+```text
 apps/web/   # React + Vite frontend
 apps/api/   # NestJS backend
 e2e/        # Playwright tests
@@ -18,39 +29,84 @@ api/        # Vercel serverless adapter
 
 ## Quick Start
 
+### Prerequisites
+
+- Node.js >= 22
+- pnpm >= 10
+- Docker (for database)
+
+### Setup
+
+1. **Install Dependencies**
+
+   ```bash
+   pnpm install
+   ```
+
+2. **Environment Variables**
+   Copy `.env.example` to `.env` in `apps/web` and `apps/api`.
+
+   ```bash
+   cp apps/web/.env.example apps/web/.env
+   cp apps/api/.env.example apps/api/.env
+   ```
+
+3. **Start Database**
+
+   ```bash
+   make db
+   ```
+
+4. **Start Development Servers**
+
+   ```bash
+   make dev
+   # Web: http://localhost:5173
+   # API: http://localhost:3000
+   ```
+
+## Quality Gates & Testing
+
+This project enforces strict quality gates. All checks must pass with zero errors and zero warnings.
+
 ```bash
-pnpm install        # Install dependencies
-make db             # Start PostgreSQL
-pnpm dev            # Start dev servers (web:5173, api:3000)
+# Run all pre-commit checks (Format, Lint, Typecheck, Unit Tests)
+make pre
+
+# Run End-to-End Tests (Playwright)
+make e2e
+
+# Build all packages
+make build
 ```
 
-## Scripts
+### Individual Commands
 
 ```bash
-pnpm dev            # Development
-pnpm build          # Build all
-pnpm test           # Unit tests
-pnpm test:e2e       # E2E tests
-pnpm lint           # Lint
-pnpm typecheck      # Type check
-pnpm precommit      # Full checks
+pnpm dev            # Development mode
+pnpm build          # Build for production
+pnpm test           # Unit/Integration tests (Vitest/Jest)
+pnpm test:e2e       # E2E tests (Playwright)
+pnpm lint           # Lint (ESLint)
+pnpm typecheck      # TypeScript check
+pnpm format         # Formatter (Prettier)
 ```
 
+## Deployment
+
+- **Frontend**: Automatically deployed to Vercel on push to `main`.
+- **Backend**: Deployed as Serverless Functions on Vercel.
+- **Database**: Uses Aiven Cloud PostgreSQL.
+
 ## Tech Stack
 
 | Frontend       | Backend                 | DevOps         |
 | -------------- | ----------------------- | -------------- |
 | React 19       | NestJS 11               | Turborepo 2.6  |
 | Vite 7         | TypeORM + PostgreSQL    | GitHub Actions |
 | TailwindCSS 4  | Passport.js (JWT/OAuth) | Playwright     |
-| TanStack Query | Cloudinary              | Vercel         |
-
-## Environment
-
-Copy `.env.example` to `.env` in each app:
-
-- `apps/web/.env` - Frontend config
-- `apps/api/.env` - Backend config (DB, JWT, OAuth, etc.)
+| TanStack Query | Gemini AI (Quizzes)     | Vercel         |
+| CodeMirror 6   | Piston API (IDE)        | Docker         |
 
 ## License