feat: add production container publishing

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

docker/entrypoint.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+set -eu
+
+shutdown() {
+  trap - TERM INT
+  kill -TERM "$api_pid" "$nginx_pid" 2>/dev/null || true
+  wait "$api_pid" "$nginx_pid" 2>/dev/null || true
+  exit 0
+}
+
+goose -dir /app/migrations postgres "$DATABASE_URL" up
+seed
+
+api &
+api_pid=$!
+nginx -g 'daemon off;' &
+nginx_pid=$!
+
+trap shutdown TERM INT
+
+while kill -0 "$api_pid" 2>/dev/null && kill -0 "$nginx_pid" 2>/dev/null; do
+  sleep 1
+done
+
+kill -TERM "$api_pid" "$nginx_pid" 2>/dev/null || true
+wait "$api_pid" "$nginx_pid" 2>/dev/null || true
+exit 1