chore: migrate project to pnpm by updating installation commands and CI configuration

.github/workflows/ci.yml

@@ -39,6 +39,8 @@ jobs:
       # pnpm setup
       - name: Install pnpm
         uses: pnpm/action-setup@v4
+        with:
+          package_json_file: frontend/package.json
 
       # Node.js setup and cache
       - name: Set up Node.js

.vscode/launch.json

@@ -30,7 +30,7 @@
             "type": "node",
             "request": "launch",
             "name": "Launch Frontend",
-            "runtimeExecutable": "npm",
+            "runtimeExecutable": "pnpm",
             "runtimeArgs": ["run", "dev"],
             "env": {
                 "VITE_APP_LOG_LEVEL": "DEBUG",

README.md

@@ -2414,7 +2414,7 @@ fern generate --local
 and to install fern-cli
 
 ```bash
-npm install -g fern-api
+pnpm add -g fern-api
 ```
 
 #### Testing