fix(todo): correct health check endpoints

- Backend: Fix Dockerfile health check path (/api/v1/health -> /health)
- Web: Add missing /health endpoint for Docker health checks

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/todo/apps/backend/Dockerfile

@@ -60,7 +60,7 @@ EXPOSE 3018
 
 # Health check
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-  CMD wget --no-verbose --tries=1 --spider http://localhost:3018/api/v1/health || exit 1
+  CMD wget --no-verbose --tries=1 --spider http://localhost:3018/health || exit 1
 
 # Run entrypoint script
 ENTRYPOINT ["docker-entrypoint.sh"]

apps/todo/apps/web/src/routes/health/+server.ts

@@ -0,0 +1,10 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+
+export const GET: RequestHandler = async () => {
+	return json({
+		status: 'ok',
+		service: 'todo-web',
+		timestamp: new Date().toISOString(),
+	});
+};