Clean up the dockerfile a bit

Dockerfile

@@ -54,42 +54,14 @@ WORKDIR /app
 
 COPY --from=backend-build /app/target/release/backend /app/backend
 COPY --from=frontend-build /app/frontend/dist /app/dist
+COPY --chmod=0755 entrypoint.sh /app/entrypoint.sh
 
-# Single entrypoint: substitute the real config into the prebuilt bundle, then
-# run both processes and exit (so the orchestrator restarts us) if either dies.
-RUN cat > /app/entrypoint.sh <<'EOF'
-#!/usr/bin/env bash
-set -euo pipefail
+RUN mkdir -p /app/data && chown -R node:node /app/dist /app/data
 
-# Map the provided runtime variables onto the frontend's VITE_* placeholders.
-VITE_API_URL="${SERVER_URL:-}"
-VITE_RELAY_DOMAIN="${RELAY_DOMAIN:-}"
-VITE_PLATFORM_NAME="${PLATFORM_NAME:-}"
+USER node:node
 
-# Escape characters that are special in a sed replacement.
-esc() { printf '%s' "$1" | sed -e 's/[&|\\]/\\&/g'; }
-
-echo "Applying runtime configuration to the frontend bundle..."
-while IFS= read -r -d '' f; do
-  sed -i \
-    -e "s|__VITE_API_URL__|$(esc "$VITE_API_URL")|g" \
-    -e "s|__VITE_RELAY_DOMAIN__|$(esc "$VITE_RELAY_DOMAIN")|g" \
-    -e "s|__VITE_PLATFORM_NAME__|$(esc "$VITE_PLATFORM_NAME")|g" \
-    "$f"
-done < <(find /app/dist -type f \( -name '*.js' -o -name '*.html' \) -print0)
-
-echo "Starting backend (:2892) and frontend (:3000)..."
-/app/backend &
-backend_pid=$!
-serve -s /app/dist -l 3000 &
-serve_pid=$!
-
-trap 'kill -TERM "$backend_pid" "$serve_pid" 2>/dev/null || true' TERM INT
-
-# Exit as soon as either process exits.
-wait -n
-EOF
-RUN chmod +x /app/entrypoint.sh
+ENV SERVER_PORT=2892 \
+    DATABASE_URL=sqlite:///app/data/caravel.db
 
 EXPOSE 2892 3000