feat: show node connection status and traffic stats in admin panel

Enable sing-box Clash/V2Ray APIs for per-user metrics, persist cumulative
traffic in SQLite, and refresh the dashboard every five seconds.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/render-server.py

@@ -54,9 +54,14 @@ def build_config(env: dict[str, str], nodes: list[dict]) -> dict:
             raise SystemExit(f".env 缺少 {key}")
 
     vless_users = [{"uuid": n["uuid"], "flow": "xtls-rprx-vision"} for n in nodes]
-    hy2_users = [{"password": n["hy2_password"]} for n in nodes]
+    # name 与 VLESS uuid 一致，便于 v2ray/clash API 按用户统计流量
+    hy2_users = [
+        {"name": n["uuid"], "password": n["hy2_password"]} for n in nodes
+    ]
+    user_ids = [n["uuid"] for n in nodes]
+    clash_secret = env.get("CLASH_API_SECRET", "")
 
-    return {
+    config = {
         "log": {"level": "warn", "timestamp": True},
         "inbounds": [
             {
@@ -100,6 +105,24 @@ def build_config(env: dict[str, str], nodes: list[dict]) -> dict:
         },
     }
 
+    experimental: dict = {
+        "clash_api": {
+            "external_controller": "127.0.0.1:9090",
+        },
+        "v2ray_api": {
+            "listen": "127.0.0.1:9091",
+            "stats": {
+                "enabled": True,
+                "inbounds": ["vless-reality-in", "hysteria2-in"],
+                "users": user_ids,
+            },
+        },
+    }
+    if clash_secret:
+        experimental["clash_api"]["secret"] = clash_secret
+    config["experimental"] = experimental
+    return config
+
 
 def main() -> None:
     env = load_env(ENV_FILE)