Initial commit: X-Server Mobile enterprise tool system

- Frontend: React 18 + TypeScript + Vite + Ant Design Mobile
- Backend: PHP 8.5 + Webman 2.x + MySQL + Redis
- i18n support: Chinese, English, Russian, Spanish, French
- Approval workflow engine
- Docker development environment
- Feishu integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/Dockerfile

@@ -0,0 +1,34 @@
+FROM php:8.5-cli
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    unzip \
+    git \
+    libzip-dev \
+    libpng-dev \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install PHP extensions
+RUN docker-php-ext-install zip pdo pdo_mysql bcmath pcntl
+
+# Install Composer
+COPY --from=composer:latest /usr/bin/composer /usr/local/bin/composer
+
+# Set working directory
+WORKDIR /app
+
+# Copy composer files
+COPY composer.json composer.lock* ./
+
+# Install dependencies
+RUN composer install --no-interaction --optimize-autoloader
+
+# Copy application files
+COPY . .
+
+# Expose port
+EXPOSE 8787
+
+# Start webman in foreground mode
+CMD ["php", "start.php", "start"]