Initial commit with Email Import Wizard and Task Processor updates

paperless-backend/Dockerfile

@@ -0,0 +1,18 @@
+# Backend
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+# Production
+FROM node:20-alpine
+RUN apk add --no-cache ghostscript imagemagick
+WORKDIR /app
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/package.json ./
+
+EXPOSE 3100
+CMD ["node", "dist/main.js"]