feat: add configurable relay balance and model usage monitor

index.json

@@ -1,9 +1,35 @@
 {
   "version": 1,
-  "updated_at": "2026-07-28T03:17:39Z",
+  "updated_at": "2026-08-22T15:50:28Z",
   "scripts": [
-    {
-      "id": "codex-context-used-meter",
+    {
+      "id": "codex-relay-balance",
+      "name": "Codex Relay Balance",
+      "description": "通用中转站余额与模型用量监控，支持自动读取或手动填写接口、日期范围、Token 明细和实际扣费倍率。",
+      "version": "0.3.3",
+      "author": "Codex++ Community",
+      "tags": [
+        "codex",
+        "relay",
+        "balance",
+        "sub2api",
+        "ui"
+      ],
+      "homepage": "https://github.com/BigPizzaV3/CodexPlusPlusScriptMarket",
+      "script_url": "https://raw.githubusercontent.com/BigPizzaV3/CodexPlusPlusScriptMarket/main/scripts/codex-relay-balance.js",
+      "sha256": "6E42581ADC963E9093E3E6ED16B96C785320D2BBFBFF3A9F0BF9C922F47736F7",
+      "requirements": [
+        "Codex++ 用户脚本环境",
+        "中转站需提供余额和模型用量查询接口"
+      ],
+      "limitations": [
+        "默认兼容 sub2api 的 /v1/usage 接口",
+        "接口需返回 balance 或 remaining，以及 model_stats 字段",
+        "实际扣费倍率按 actual_cost ÷ cost 计算，属于查询范围内的加权结果"
+      ]
+    },
+    {
+      "id": "codex-context-used-meter",
       "name": "Codex Context Used Meter",
       "description": "在 Codex App 对话界面显示当前会话上下文余量，并支持可选 Provider 余额、消耗动画、悬停历史图、inline/floating 显示和主题切换。",
       "version": "101",