fix: add .dockerignore to exclude stale .next cache from Docker build

.dockerignore

@@ -0,0 +1,9 @@
+.next
+node_modules
+.git
+.env.local
+.env.*.local
+npm-debug.log*
+*.log
+test-results
+playwright-report

Dockerfile

@@ -1,9 +1,9 @@
 FROM node:22-alpine AS builder
 WORKDIR /app
-
+# Install ALL deps (including devDeps like tailwindcss, typescript)
+ENV NODE_ENV=development
 COPY package*.json ./
 RUN npm ci
-
 COPY . .
 ENV NEXT_TELEMETRY_DISABLED=1
 RUN npm run build
@@ -12,11 +12,9 @@ FROM node:22-alpine AS runner
 WORKDIR /app
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
-
 COPY --from=builder /app/.next/standalone ./
 COPY --from=builder /app/.next/static ./.next/static
 COPY --from=builder /app/public ./public
-
 EXPOSE 3000
 ENV PORT=3000
 CMD ["node", "server.js"]