feat(http3): add automatic HTTP/3 route augmentation for qualifying HTTPS routes

ts/classes.dcrouter.ts

@@ -24,6 +24,7 @@ import { RadiusServer, type IRadiusServerConfig } from './radius/index.js';
 import { RemoteIngressManager, TunnelManager } from './remoteingress/index.js';
 import { RouteConfigManager, ApiTokenManager } from './config/index.js';
 import { SecurityLogger, ContentScanner, IPReputationChecker } from './security/index.js';
+import { type IHttp3Config, augmentRoutesWithHttp3 } from './http3/index.js';
 
 export interface IDcRouterOptions {
   /** Base directory for all dcrouter data. Defaults to ~/.serve.zone/dcrouter */
@@ -163,6 +164,14 @@ export interface IDcRouterOptions {
    * Remote Ingress configuration for edge tunnel nodes
    * Enables edge nodes to accept incoming connections and tunnel them to this DcRouter
    */
+  /**
+   * HTTP/3 (QUIC) configuration for HTTPS routes.
+   * Enabled by default — qualifying HTTPS routes on port 443 are automatically
+   * augmented with QUIC/H3 fields. Set { enabled: false } to disable globally.
+   * Individual routes can opt out via action.options.http3 = false.
+   */
+  http3?: IHttp3Config;
+
   /** Port for the OpsServer web UI (default: 3000) */
   opsServerPort?: number;
 
@@ -297,6 +306,7 @@ export class DcRouter {
         this.storageManager,
         () => this.getConstructorRoutes(),
         () => this.smartProxy,
+        () => this.options.http3,
       );
       this.apiTokenManager = new ApiTokenManager(this.storageManager);
       await this.apiTokenManager.initialize();
@@ -469,6 +479,13 @@ export class DcRouter {
       challengeHandlers.push(dns01Handler);
     }
     
+    // HTTP/3 augmentation (enabled by default unless explicitly disabled)
+    if (this.options.http3?.enabled !== false) {
+      const http3Config: IHttp3Config = { enabled: true, ...this.options.http3 };
+      routes = augmentRoutesWithHttp3(routes, http3Config);
+      logger.log('info', 'HTTP/3: Augmented qualifying HTTPS routes with QUIC/H3 configuration');
+    }
+
     // Cache constructor routes for RouteConfigManager
     this.constructorRoutes = [...routes];