Fix server build: use pnpm exec instead of pnpx, remove firebase-admin from externals

- pnpx acts as pnpm dlx, downloading latest prisma v7 from npm instead of
  using locally installed v6.3.1. Switch to pnpm exec for local execution.
- Remove firebase-admin from webpack externals since externals prevents
  NormalModuleReplacementPlugin from intercepting the imports. The plugin
  regex now properly catches all firebase-admin/* paths and redirects to stub.

app/bridge/next.config.js

@@ -74,8 +74,7 @@ module.exports = (phase, { defaultConfig }) => {
     },
     webpack: (config, { isServer, dev }) => {
       config.cache = false; // Disable Webpack's persistent caching
-      config.externals.push("pino-pretty", "lokijs", "encoding",
-        "firebase-admin", "firebase-admin/app", "firebase-admin/auth", "firebase-admin/firestore");
+      config.externals.push("pino-pretty", "lokijs", "encoding");
       config.resolve.fallback = { fs: false, net: false, tls: false };
       config.resolve.alias['@'] = path.resolve(__dirname, 'src');
 

app/server/package.json

@@ -14,8 +14,8 @@
     "tc": "tsc",
     "typecheck": "tsc",
     "clean": "rm -rf ./node_modules",
-    "prisma:gen": "pnpx prisma generate",
-    "build": "pnpx prisma generate && tsc && tsc-alias",
+    "prisma:gen": "pnpm exec prisma generate",
+    "build": "pnpm exec prisma generate && tsc && tsc-alias",
     "start": "node dist/server.js",
     "lint": "eslint src/**/*.ts",
     "format": "eslint src/**/*.ts --fix",