Fix pnpm install error in CI

Author: ajlai-orkes

ui-next/.npmrc

@@ -4,8 +4,4 @@ public-hoist-pattern[]=@mui/*
 public-hoist-pattern[]=@use-gesture/*
 public-hoist-pattern[]=@eslint/*
 public-hoist-pattern[]=globals
-public-hoist-pattern[]=monaco-editor
-
-# Pin the pnpm content-addressable store to a fixed location outside the
-# project so it doesn't appear as untracked files (especially in Docker).
-store-dir=/root/.pnpm-store
+public-hoist-pattern[]=monaco-editor

ui-next/docker-compose.snapshots.yml

@@ -14,6 +14,7 @@ services:
       - app_modules:/app/node_modules
     environment:
       CI: "true"
+      npm_config_store_dir: /root/.pnpm-store
     # Listen on all interfaces so the playwright service can reach it.
     command: >
       sh -c "corepack enable &&
@@ -45,6 +46,7 @@ services:
         condition: service_healthy
     environment:
       CI: "true"
+      npm_config_store_dir: /root/.pnpm-store
       BASE_URL: http://localhost:1234
     # PLAYWRIGHT_FLAGS is set by the :update script to --update-snapshots.
     command: >