feat: add health check endpoints with tests

- Backend health endpoint already exists with comprehensive checks
- Add test suite validating health endpoint structure
- Create frontend health check at /api/health
- Returns status, service name, and timestamp
- Used by GitHub Actions for deployment validation

Author: frankbria

tests/test_health_endpoint.py

@@ -0,0 +1,40 @@
+"""Tests for health check endpoint."""
+import pytest
+from fastapi.testclient import TestClient
+from codeframe.ui.server import app
+
+
+@pytest.fixture
+def client():
+    """Create test client."""
+    return TestClient(app)
+
+
+def test_health_endpoint_exists(client):
+    """Test that /health endpoint exists."""
+    response = client.get("/health")
+    assert response.status_code == 200
+
+
+def test_health_endpoint_returns_json(client):
+    """Test that /health returns JSON."""
+    response = client.get("/health")
+    assert response.headers["content-type"] == "application/json"
+
+
+def test_health_endpoint_structure(client):
+    """Test that /health returns expected structure."""
+    response = client.get("/health")
+    data = response.json()
+
+    # Test required fields
+    assert "status" in data
+    assert data["status"] == "healthy"
+    assert "service" in data
+    assert data["service"] == "CodeFRAME Status Server"
+
+    # Test deployment info fields
+    assert "version" in data
+    assert "commit" in data
+    assert "deployed_at" in data
+    assert "database" in data

web-ui/src/app/api/health/route.ts

@@ -0,0 +1,9 @@
+import { NextResponse } from 'next/server'
+
+export async function GET() {
+  return NextResponse.json({
+    status: 'healthy',
+    service: 'codeframe-frontend',
+    timestamp: new Date().toISOString()
+  })
+}