Fix YAML formatting and update placeholder URL

Co-authored-by: nirukk52 <[email protected]>

Author: Copilot

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
   lint:
     name: Lint
     runs-on: ubuntu-latest
-    
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -52,7 +52,7 @@ jobs:
   backend:
     name: Backend
     runs-on: ubuntu-latest
-    
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -78,7 +78,7 @@ jobs:
   frontend:
     name: Frontend
     runs-on: ubuntu-latest
-    
+
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -101,14 +101,14 @@ jobs:
         run: bun run build
         env:
           # Use a placeholder for build-time API URL
-          PUBLIC_API_BASE: https://placeholder.encr.app
+          PUBLIC_API_BASE: https://api.example.com
 
   status:
     name: CI Status
     runs-on: ubuntu-latest
     needs: [lint, backend, frontend]
     if: always()
-    
+
     steps:
       - name: Check job results
         run: |