feat: switch to caddy

Dockerfile

@@ -1,33 +1,22 @@
 # Build stage
 FROM node:20-alpine AS builder
-
 WORKDIR /app
-
-# Copy package files
 COPY package.json yarn.lock ./
-
-# Install dependencies
 RUN yarn install --frozen-lockfile
-
-# Copy source code
 COPY . .
-
-# Build the app
 RUN yarn build
 
-# Production stage - tiny Python server
-FROM python:3.11-alpine
+# Production stage - Caddy
+FROM caddy:2-alpine
 
-WORKDIR /app
+WORKDIR /usr/share/caddy
 
-# Copy built static files
-COPY --from=builder /app/dist ./dist
+# Copy built static files from the builder stage
+COPY --from=builder /app/dist .
 
-# Expose port
+# Expose the port Caddy will listen on
 EXPOSE 3000
 
-# Set environment variable
-ENV PYTHONUNBUFFERED=1
-
-# Start the server
-CMD ["python", "-m", "http.server", "3000", "--directory", "dist"]
+# Start Caddy as a file server with SPA support
+# It serves files from the current dir and redirects unknown paths to index.html
+CMD ["caddy", "file-server", "--listen", ":3000", "--try-files", "index.html"]