Improve user authentication and add Docker support.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 705f2157-ef97-4fbd-89e4-8c7f2ecaea90
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7ed01c5f-a82d-405a-b728-b2e3d127c60c/3de0b07e-5376-463b-b11e-ad41b6fbed26.jpg

Dockerfile

@@ -0,0 +1,46 @@
+FROM node:20-slim AS builder
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy the rest of the source code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Production stage
+FROM node:20-slim AS runner
+
+WORKDIR /app
+
+# Set environment to production
+ENV NODE_ENV=production
+
+# Copy package files and install production dependencies
+COPY package*.json ./
+RUN npm ci --production
+
+# Copy build artifacts from the builder stage
+COPY --from=builder /app/dist ./dist
+
+# Copy schema files for Drizzle
+COPY ./shared/schema.ts ./shared/
+COPY ./drizzle.config.ts ./
+
+# Set the database URL environment variable (this will be overridden at runtime)
+ENV DATABASE_URL=postgres://postgres:postgres@localhost:5432/postgres
+
+# Set session secret (should be overridden at runtime)
+ENV SESSION_SECRET=changeme
+
+# Expose the port the app runs on
+EXPOSE 5000
+
+# Start the application
+CMD ["node", "dist/index.js"]