fix(api/schemas): handle unknown error type in Next.js API route and ensure pnpm is installed first in CI workflow

Author: fabiendostie

.github/workflows/CI.yml

@@ -12,15 +12,15 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Install pnpm
+        run: npm install -g pnpm
+
       - name: Use Node.js 20.x
         uses: actions/setup-node@v4
         with:
           node-version: 20
           cache: 'pnpm'
 
-      - name: Install pnpm
-        run: npm install -g pnpm
-
       - name: Install dependencies
         run: pnpm install
 

app/api/schemas/route.ts

@@ -13,6 +13,7 @@ export async function GET() {
     }));
     return NextResponse.json({ schemas });
   } catch (error) {
-    return NextResponse.json({ error: error.message }, { status: 500 });
+    const message = error instanceof Error ? error.message : String(error);
+    return NextResponse.json({ error: message }, { status: 500 });
   }
 }