Stabilize HF Docker build with npm ci and lockfile

.dockerignore

@@ -0,0 +1,8 @@
+.git
+.gitignore
+frontend/node_modules
+frontend/.next
+frontend/.turbo
+backend/__pycache__
+**/__pycache__
+**/*.pyc

.gitignore

@@ -0,0 +1,4 @@
+frontend/node_modules/
+frontend/.next/
+backend/__pycache__/
+*.pyc

Dockerfile

@@ -3,8 +3,8 @@ FROM node:20-alpine AS frontend-builder
 
 WORKDIR /app/frontend
 
-COPY frontend/package.json ./
-RUN npm install
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
 
 COPY frontend/ ./
 RUN npm run build

frontend/next-env.d.ts

@@ -0,0 +1,5 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/basic-features/typescript for more information.