refactor remove upstream env dependency (#551)

packages/server/src/controllers/health.ts

@@ -2,7 +2,6 @@ import { existsSync, readFileSync } from 'fs'
 import { resolve } from 'path'
 import * as hermesCli from '../services/hermes/hermes-cli'
 import { getGatewayManagerInstance } from '../services/gateway-bootstrap'
-import { config } from '../config'
 
 declare const __APP_VERSION__: string
 
@@ -73,7 +72,10 @@ export async function healthCheck(ctx: any) {
   let gatewayOk = false
   try {
     const mgr = getGatewayManagerInstance()
-    const upstream = mgr?.getUpstream() || config.upstream
+    const upstream = mgr?.getUpstream()
+    if (!upstream) {
+      throw new Error('GatewayManager not initialized')
+    }
     const res = await fetch(`${upstream.replace(/\/$/, '')}/health`, { signal: AbortSignal.timeout(5000) })
     gatewayOk = res.ok
   } catch { }