Fix stalled npm install on Coolify build

Prefer IPv4 DNS for npm, cache the npm store between builds, log fetch
progress, add retries, and drop the unused ESLint toolchain
(291 -> 190 packages).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Dockerfile

@@ -1,9 +1,14 @@
 # Mega Infrastructure website: build the Vite app, serve the static output with nginx.
 
-FROM node:22.11.0-alpine AS build
+FROM node:22.14.0-alpine AS build
 WORKDIR /app
+# Servers without working IPv6 can stall npm for minutes per request; prefer IPv4.
+ENV NODE_OPTIONS=--dns-result-order=ipv4first
 COPY app/package.json app/package-lock.json ./
-RUN npm ci
+# Cache mount keeps downloaded packages between deploys; http loglevel shows progress in Coolify.
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci --no-audit --no-fund --prefer-offline --loglevel=http \
+      --fetch-timeout=60000 --fetch-retries=5
 COPY app/ ./
 RUN npm run build
 

app/eslint.config.js

@@ -1,28 +0,0 @@
-import js from '@eslint/js'
-import globals from 'globals'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import tseslint from 'typescript-eslint'
-
-export default tseslint.config(
-  { ignores: ['dist'] },
-  {
-    extends: [js.configs.recommended, ...tseslint.configs.recommended],
-    files: ['**/*.{ts,tsx}'],
-    languageOptions: {
-      ecmaVersion: 2020,
-      globals: globals.browser,
-    },
-    plugins: {
-      'react-hooks': reactHooks,
-      'react-refresh': reactRefresh,
-    },
-    rules: {
-      ...reactHooks.configs.recommended.rules,
-      'react-refresh/only-export-components': [
-        'warn',
-        { allowConstantExport: true },
-      ],
-    },
-  },
-)

app/package.json

@@ -6,7 +6,6 @@
   "scripts": {
     "dev": "vite",
     "build": "tsc -b && vite build",
-    "lint": "eslint .",
     "preview": "vite preview"
   },
   "dependencies": {
@@ -15,20 +14,14 @@
     "react-dom": "^19.1.0"
   },
   "devDependencies": {
-    "@eslint/js": "^9.25.0",
     "@types/node": "^22.20.5",
     "@types/react": "^19.1.2",
     "@types/react-dom": "^19.1.2",
     "@vitejs/plugin-react": "^4.4.1",
     "autoprefixer": "^10.4.20",
-    "eslint": "^9.25.0",
-    "eslint-plugin-react-hooks": "^5.2.0",
-    "eslint-plugin-react-refresh": "^0.4.19",
-    "globals": "^16.0.0",
     "postcss": "^8.4.49",
     "tailwindcss": "^3.4.17",
     "typescript": "~5.8.3",
-    "typescript-eslint": "^8.30.1",
     "vite": "^6.3.5"
   }
 }