feat: Complete SalonOS implementation with authentication, payments, reports, and documentation

- Implement client authentication with Supabase magic links
- Add Stripe payment integration for deposits
- Complete The Boutique booking flow with payment processing
- Implement Aperture backend with staff/resources management
- Add comprehensive reports: sales, payments, payroll
- Create permissions management system by roles
- Configure kiosk system with enrollment
- Add no-show logic and penalization system
- Update project documentation and API docs
- Enhance README with current project status

API.md

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+# SalonOS API Documentation
+
+## Overview
+SalonOS is a comprehensive salon management system built with Next.js, Supabase, and Stripe integration.
+
+## Authentication
+- **Client Authentication**: Magic link via Supabase Auth
+- **Staff/Admin Authentication**: Supabase Auth with role-based access
+- **Kiosk Authentication**: API key based
+
+## API Endpoints
+
+### Public APIs
+
+#### Services
+- `GET /api/services` - List all available services
+- `POST /api/services` - Create new service (Admin only)
+
+#### Locations
+- `GET /api/locations` - List all salon locations
+
+#### Availability
+- `GET /api/availability/time-slots` - Get available time slots for booking
+- `POST /api/availability/staff-unavailable` - Mark staff unavailable (Staff auth required)
+
+#### Bookings (Public)
+- `POST /api/bookings` - Create new booking
+- `GET /api/bookings/[id]` - Get booking details
+- `PUT /api/bookings/[id]` - Update booking
+
+### Staff/Admin APIs (Aperture)
+
+#### Dashboard
+- `GET /api/aperture/dashboard` - Dashboard data
+- `GET /api/aperture/stats` - Statistics
+
+#### Staff Management
+- `GET /api/aperture/staff` - List staff members
+- `POST /api/aperture/staff` - Create/Update staff
+
+#### Resources
+- `GET /api/aperture/resources` - List resources
+- `POST /api/aperture/resources` - Manage resources
+
+#### Reports
+- `GET /api/aperture/reports/sales` - Sales reports
+- `GET /api/aperture/reports/payments` - Payment reports
+- `GET /api/aperture/reports/payroll` - Payroll reports
+
+#### Permissions
+- `GET /api/aperture/permissions` - Get role permissions
+- `POST /api/aperture/permissions` - Update permissions
+
+### Kiosk APIs
+- `POST /api/kiosk/authenticate` - Authenticate kiosk
+- `GET /api/kiosk/resources/available` - Get available resources for kiosk
+- `POST /api/kiosk/bookings` - Create walk-in booking
+- `PUT /api/kiosk/bookings/[shortId]/confirm` - Confirm booking
+
+### Payment APIs
+- `POST /api/create-payment-intent` - Create Stripe payment intent
+
+### Admin APIs
+- `GET /api/admin/locations` - List locations (Admin key required)
+- `POST /api/admin/users` - Create staff/user
+- `POST /api/admin/kiosks` - Create kiosk
+
+## Data Models
+
+### User Roles
+- `customer` - End customers
+- `staff` - Salon staff
+- `artist` - Service providers
+- `manager` - Location managers
+- `admin` - System administrators
+- `kiosk` - Kiosk devices
+
+### Key Tables
+- `locations` - Salon locations
+- `staff` - Staff members
+- `services` - Available services
+- `resources` - Physical resources (stations)
+- `customers` - Customer profiles
+- `bookings` - Service bookings
+- `kiosks` - Kiosk devices
+- `audit_logs` - System audit trail
+
+## Environment Variables
+
+### Required
+- `NEXT_PUBLIC_SUPABASE_URL`
+- `NEXT_PUBLIC_SUPABASE_ANON_KEY`
+- `SUPABASE_SERVICE_ROLE_KEY`
+- `NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY`
+- `STRIPE_SECRET_KEY`
+
+### Optional
+- `ADMIN_ENROLLMENT_KEY` - For staff enrollment
+- `GOOGLE_SERVICE_ACCOUNT_KEY` - For Calendar sync
+
+## Deployment
+
+### Prerequisites
+- Node.js 18+
+- Supabase account
+- Stripe account
+- Google Cloud (for Calendar)
+
+### Setup Steps
+1. Clone repository
+2. Install dependencies: `npm install`
+3. Configure environment variables
+4. Run database migrations: `npm run db:migrate`
+5. Seed data: `npm run db:seed`
+6. Build: `npm run build`
+7. Start: `npm start`
+
+## Features
+
+### Core Functionality
+- Multi-location salon management
+- Real-time availability system
+- Integrated payment processing
+- Staff scheduling and payroll
+- Customer relationship management
+- Kiosk system for walk-ins
+
+### Advanced Features
+- Role-based access control
+- Audit logging
+- Automated no-show handling
+- Commission-based payroll
+- Sales analytics and reporting
+- Permission management
+
+### Security
+- Row Level Security (RLS) in Supabase
+- API key authentication for kiosks
+- Magic link authentication for customers
+- Encrypted payment processing
+
+## Support
+
+For API issues or feature requests, please check the TASKS.md for current priorities or create an issue in the repository.