feat(channels): add microsoft teams bot framework adapter

src/gateway/server.ts

@@ -43,6 +43,7 @@ import type { ComponentRegistry } from '../intents/index.js';
 import type { RoutingPolicy } from '../routing/index.js';
 import type { ChannelRegistry } from '../channels/index.js';
 import { RequestBodyTooLargeError, readRequestBody } from '../utils/httpBody.js';
+import type { TeamsAdapter } from '../channels/teams/adapter.js';
 
 export interface GatewayServerConfig {
   port: number;
@@ -93,6 +94,8 @@ export interface GatewayServerConfig {
     serviceType: string;
     txtRecord?: Record<string, string>;
   };
+  /** Optional Teams adapter for inbound Bot Framework activity webhooks. */
+  teamsHandler?: Pick<TeamsAdapter, 'handleRequest'>;
 }
 
 export class GatewayServer {
@@ -476,6 +479,12 @@ export class GatewayServer {
       return;
     }
 
+    // Teams Bot Framework events route — bypass gateway auth (Bot Framework posts directly)
+    if (this.config.teamsHandler && req.method === 'POST' && req.url?.startsWith('/teams/events')) {
+      await this.config.teamsHandler.handleRequest(req, res);
+      return;
+    }
+
     // Apply auth to HTTP requests when configured
     const authConfig = this.config.auth ?? {};
     if (this.config.authHttp !== false && authConfig.token) {
@@ -563,6 +572,11 @@ export class GatewayServer {
     this.config.gmailHandler = handler;
   }
 
+  /** Set the Teams handler for inbound Bot Framework activity HTTP routes (late binding). */
+  setTeamsHandler(handler: Pick<TeamsAdapter, 'handleRequest'>): void {
+    this.config.teamsHandler = handler;
+  }
+
   private async startDiscovery(host: string, port: number): Promise<void> {
     const discovery = this.config.discovery;
     if (!discovery?.enabled) {