feat: dockerize api

apps/api/Dockerfile

@@ -1,5 +1,22 @@
 FROM node:20-alpine as build
 
+# ENVs here are for reference only, don't put secrets here
+
+# ENV DATABASE_URL=
+# ENV SUPABASE_API_URL=
+# ENV SUPABASE_ANON_KEY=
+
+# ENV SMTP_HOST=
+# ENV SMTP_PORT=
+# ENV SMTP_EMAIL_ADDRESS=
+# ENV SMTP_PASSWORD=
+# ENV FROM_EMAIL=
+
+# ENV JWT_SECRET=secret
+
+# ENV WEB_FRONTEND_URL=https://keyshade.xyz
+# ENV WORKSPACE_FRONTEND_URL=https://app.keyshade.xyz
+
 WORKDIR /app
 
 RUN npm i -g pnpm