feat(admin-ui): add configurable Admin UI domain routing

ts/classes/reverseproxy.ts

@@ -10,15 +10,20 @@
 
 import { logger } from '../logging.ts';
 import { getErrorMessage } from '../utils/error.ts';
+import { normalizeHostname } from '../utils/domain.ts';
 import { OneboxDatabase } from './database.ts';
 import { SmartProxyManager } from './smartproxy.ts';
 
+const adminUiRouteName = 'onebox-admin-ui';
+const adminUiPort = 3000;
+
 interface IProxyRoute {
   domain: string;
   targetHost: string;
   targetPort: number;
-  serviceId: number;
+  serviceId?: number;
   serviceName?: string;
+  routeType: 'service' | 'admin-ui';
 }
 
 export class OneboxReverseProxy {
@@ -112,6 +117,7 @@ export class OneboxReverseProxy {
         targetPort,
         serviceId,
         serviceName,
+        routeType: 'service',
       };
 
       this.routes.set(domain, route);
@@ -127,6 +133,25 @@ export class OneboxReverseProxy {
     }
   }
 
+  async addAdminUiRoute(domain: string): Promise<void> {
+    const normalizedDomain = normalizeHostname(domain);
+    if (!normalizedDomain) return;
+
+    const targetHost = this.getAdminUiTargetHost();
+    const route: IProxyRoute = {
+      domain: normalizedDomain,
+      targetHost,
+      targetPort: adminUiPort,
+      serviceName: adminUiRouteName,
+      routeType: 'admin-ui',
+    };
+
+    this.routes.set(normalizedDomain, route);
+    const upstream = `${targetHost}:${adminUiPort}`;
+    await this.smartProxy.addRoute(normalizedDomain, upstream);
+    logger.success(`Added Admin UI proxy route: ${normalizedDomain} -> ${upstream}`);
+  }
+
   /**
    * Remove a route
    */
@@ -166,6 +191,11 @@ export class OneboxReverseProxy {
         }
       }
 
+      const adminUiDomain = this.getAdminUiDomain();
+      if (adminUiDomain) {
+        await this.addAdminUiRoute(adminUiDomain);
+      }
+
       logger.success(`Loaded ${this.routes.size} proxy routes`);
     } catch (error) {
       logger.error(`Failed to reload routes: ${getErrorMessage(error)}`);
@@ -173,6 +203,18 @@ export class OneboxReverseProxy {
     }
   }
 
+  private getAdminUiDomain(): string {
+    return normalizeHostname(this.database.getSetting('adminUiDomain') || '');
+  }
+
+  private getAdminUiTargetHost(): string {
+    const serverIP = this.database.getSetting('serverIP');
+    if (!serverIP) {
+      logger.warn('serverIP is not configured; Admin UI proxy route will use host.docker.internal');
+    }
+    return serverIP || 'host.docker.internal';
+  }
+
   /**
    * Add TLS certificate for a domain
    * Sends PEM content to SmartProxy via Admin API