Add/r2 router (#38)

* made columns closer

* Added flip label files, updated router robustness data for router comparison

* Updated VLLM leaderboard score

* Added R2 Router

Author: shenrunzhang

src/data/routerMetrics/leaderboard.json

@@ -1,4 +1,15 @@
 [
+  {
+    "Router Name": "R2-Router",
+    "Arena Score": 71.60,
+    "Optimal Selection Score": 32.38,
+    "Optimal Cost Score": 74.16,
+    "Optimal Acc. Score": 100.00,
+    "Robustness Score": 45.71,
+    "Latency Score": null,
+    "Accuracy": 71.23,
+    "Cost per 1k": 0.06
+  },
   {
     "Router Name": "RouterDC",
     "Arena Score": 33.75,

src/data/routers.json

@@ -1,4 +1,21 @@
 {
+  "R2-Router": {
+    "name": "R2-Router",
+    "type": "open-source",
+    "description": "High-performance routing system with optimal accuracy",
+    "affiliation": "UCF",
+    "modelPool": [
+      "qwen/qwen3-235b-a22b-2507",
+      "qwen/qwen3-next-80b-a3b-instruct",
+      "qwen/qwen3-30b-a3b-instruct-2507",
+      "Qwen/Qwen3-Coder-Next",
+      "gemini-2.5-flash",
+      "claude-3-haiku-20240307"
+    ],
+    "paperUrl": "https://arxiv.org/abs/2602.02823",
+    "websiteUrl": "https://arxiv.org/abs/2602.02823",
+    "githubUrl": ""
+  },
   "RouterDC": {
     "name": "RouterDC",
     "type": "open-source",