fix: add missing axios dependency to frontend-web

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend-web/package.json

@@ -55,6 +55,7 @@
     "@uiw/react-codemirror": "^4.25.4",
     "@xyflow/react": "^12.10.0",
     "ai": "^6.0.33",
+    "axios": "1.16.1",
     "best-effort-json-parser": "^1.2.1",
     "canvas-confetti": "^1.9.4",
     "class-variance-authority": "^0.7.1",