chore(lint): reduce warning debt across core adapters and model clients

src/gateway/server.ts

@@ -135,6 +135,8 @@ export class GatewayServer {
   }
 
   private registerHandlers(): void {
+    const channelRegistry = this.config.channelRegistry;
+    const runtimeConfig = this.config.config;
     const systemHandlers = createSystemHandlers({
       startTime: this.startTime,
       version: this.config.version ?? '0.1.0',
@@ -142,14 +144,14 @@ export class GatewayServer {
       getToolCount: () => this.config.toolRegistry.list().length,
       getConnectionCount: () => this.sessionBridge.connectionCount,
       restart: this.config.restart,
-      getChannels: this.config.channelRegistry
-        ? () => this.config.channelRegistry!.list().map(a => ({ name: a.name, status: a.status }))
+      getChannels: channelRegistry
+        ? () => channelRegistry.list().map(a => ({ name: a.name, status: a.status }))
         : undefined,
-      getServices: this.config.config && this.config.channelRegistry
-        ? () => discoverServices(this.config.config!, this.config.channelRegistry!)
+      getServices: runtimeConfig && channelRegistry
+        ? () => discoverServices(runtimeConfig, channelRegistry)
         : undefined,
-      getPresence: this.config.channelRegistry
-        ? (opts) => this.config.channelRegistry!.getPresence(opts)
+      getPresence: channelRegistry
+        ? (opts) => channelRegistry.getPresence(opts)
         : undefined,
       getUsage: () => ({
         totalSessions: this.config.sessionManager.listSessions().length,
@@ -307,7 +309,7 @@ export class GatewayServer {
     });
   }
 
-  private handleConnection(ws: WebSocket, identity?: string): void {
+  private handleConnection(ws: WebSocket, _identity?: string): void {
     // Gateway lock — reject if another client is already connected
     if (this.config.lock && this.connectionMap.size > 0) {
       ws.close(4003, 'Gateway locked — another client is already connected');