Fix Dockerfile dependency installation and environment variable formatting

Author: udithishanka

Dockerfile

@@ -10,7 +10,7 @@ WORKDIR /app
 # Install dependencies based on the preferred package manager
 COPY package.json pnpm-lock.yaml* package-lock.json* ./
 RUN \
-  if [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm i --frozen-lockfile; \
+  if [ -f pnpm-lock.yaml ]; then corepack enable pnpm && pnpm i --no-frozen-lockfile; \
   elif [ -f package-lock.json ]; then npm ci; \
   else echo "Lockfile not found." && exit 1; \
   fi
@@ -28,8 +28,8 @@ RUN npm run build
 FROM base AS runner
 WORKDIR /app
 
-ENV NODE_ENV production
-ENV NEXT_TELEMETRY_DISABLED 1
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
 
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
@@ -49,8 +49,8 @@ USER nextjs
 
 EXPOSE 3000
 
-ENV PORT 3000
-ENV HOSTNAME "0.0.0.0"
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
 
 # server.js is created by next build from the standalone output
 # https://nextjs.org/docs/pages/api-reference/next-config-js/output