feat: complete DM pairing codes with channel adapters, gateway handlers, and TUI command (Tier 4 feature 4)

src/gateway/server.ts

@@ -21,6 +21,7 @@ import {
   createToolHandlers,
   createAgentHandlers,
   createConfigHandlers,
+  createPairingHandlers,
 } from './handlers/index.js';
 import type { TokenUsageEntry } from './handlers/system.js';
 import type { SessionManager } from '../session/manager.js';
@@ -29,6 +30,7 @@ import type { ToolRegistry } from '../tools/registry.js';
 import type { ToolExecutor } from '../tools/executor.js';
 import type { WebhookHandler } from '../automation/webhooks.js';
 import type { GmailWatcher } from '../automation/gmail.js';
+import type { PairingManager } from '../channels/pairing.js';
 
 export interface GatewayServerConfig {
   port: number;
@@ -55,6 +57,8 @@ export interface GatewayServerConfig {
   gmailHandler?: GmailWatcher;
   /** Optional callback to retrieve per-session token usage data for the dashboard. */
   getTokenUsage?: () => TokenUsageEntry[];
+  /** Optional pairing manager for DM pairing code management via gateway. */
+  pairingManager?: PairingManager;
 }
 
 export class GatewayServer {
@@ -124,6 +128,14 @@ export class GatewayServer {
       }
     }
 
+    // Pairing handlers (only if pairing manager is provided)
+    if (this.config.pairingManager) {
+      const pairingHandlers = createPairingHandlers({ pairingManager: this.config.pairingManager });
+      for (const [method, handler] of Object.entries(pairingHandlers)) {
+        this.router.register(method, handler);
+      }
+    }
+
     // Register all methods
     for (const [method, handler] of Object.entries(systemHandlers)) {
       this.router.register(method, handler);