Settings page, customization update.

.dockerignore

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+# Dependencies
+node_modules
+npm-debug.log*
+
+# Production build (we'll create it in Docker)
+dist
+build
+
+# Version control
+.git
+.gitignore
+
+# IDE files
+.vscode
+.idea
+*.swp
+*.swo
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Docker files (don't copy Docker files into Docker)
+Dockerfile
+.dockerignore
+docker-compose.yml
+
+# Documentation
+README.md
+*.md
+
+# GitHub
+.github

Dockerfile

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+# Multi-stage build for React app with Vite
+
+# Stage 1: Build the application
+FROM node:22-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files first for better caching
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci --only=production=false
+
+# Copy source code
+COPY . .
+
+COPY .env .env
+
+# Build the application
+RUN npm run build
+
+# Stage 2: Serve the application with nginx
+FROM nginx:alpine AS production
+
+# Install security updates
+RUN apk upgrade
+
+# Create nginx user with specific UID for consistency
+RUN addgroup -g 1001 -S nginx-group || true && \
+    adduser -u 1001 -D -S -s /bin/false -G nginx-group nginx-user || true
+
+# Copy built assets from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+COPY ./nginx/nginx.conf /etc/nginx/nginx.conf
+
+# Set proper permissions
+RUN chown -R nginx:nginx /usr/share/nginx/html && \
+    chown -R nginx:nginx /var/cache/nginx && \
+    chown -R nginx:nginx /var/log/nginx && \
+    chown -R nginx:nginx /etc/nginx/conf.d
+
+RUN touch /var/run/nginx.pid && \
+    chown -R nginx:nginx /var/run/nginx.pid
+
+# Switch to nginx user
+USER nginx
+
+# Expose port 80
+EXPOSE 80
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:80/health || exit 1
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]

nginx/nginx.conf

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+user nginx;
+worker_processes auto;
+error_log /var/log/nginx/error.log notice;
+pid /var/run/nginx.pid;
+
+events {
+  worker_connections 1024;
+}
+
+http {
+  include /etc/nginx/mime.types;
+  default_type application/octet-stream;
+
+  sendfile on;
+  tcp_nopush on;
+  tcp_nodelay on;
+  keepalive_timeout 65;
+  client_max_body_size 16M;
+
+  # Security headers
+  add_header X-Frame-Options "SAMEORIGIN" always;
+  add_header X-Content-Type-Options "nosniff" always;
+  add_header Referrer-Policy "no-referrer-when-downgrade" always;
+  add_header Content-Security-Policy "default-src 'self' http: https: ws: wss: data: blob: 'unsafe-inline'; frame-ancestors 'self';" always;
+
+  gzip on;
+  gzip_vary on;
+  gzip_min_length 1024;
+  gzip_proxied any;
+  gzip_comp_level 6;
+  gzip_types text/plain text/css text/xml text/javascript application/javascript application/json;
+
+  server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # SPA routing
+    location / {
+      try_files $uri $uri/ /index.html;
+    }
+
+    # Static files cache
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+      expires 1y;
+      add_header Cache-Control "public, immutable";
+      try_files $uri =404;
+    }
+
+    # Health check
+    location /health {
+      access_log off;
+      add_header Content-Type text/plain;
+      return 200 "healthy\n";
+    }
+
+    # Deny sensitive files
+    location ~ /\.(?!well-known) {
+      deny all;
+    }
+  }
+}