fix: emit() publishes to exchange instead of sendToQueue

NestJS v10 RMQ client uses sendToQueue which sends to a specific
queue (core_queue), bypassing the exchange. Messages were never
delivered to other plugins' queues bound to the exchange.

Changed emit() to use amqplib to publish directly to system_events
exchange with {pattern, data} format that NestJS RMQ server expects.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@erp/plugin-sdk",
-  "version": "1.10.1",
+  "version": "1.11.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@erp/plugin-sdk",
-      "version": "1.10.1",
+      "version": "1.11.0",
       "license": "ISC",
       "dependencies": {
         "uuid": "^9.0.1"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@erp/plugin-sdk",
-  "version": "1.10.2",
+  "version": "1.11.3",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "bin": {

src/backend/services/core.service.ts

@@ -162,10 +162,17 @@ export class CoreService {
   }
 
   async callPluginApi<T = any>(pluginId: string, path: string, body?: any): Promise<T> {
-    return this.fetchCore(`/api/plugins/rpc/${pluginId}/${path.replace(/^\//, '')}`, {
+    const res = await this.fetchCore(`/api/plugins/rpc/${pluginId}/${path.replace(/^\//, '')}`, {
       method: 'POST',
       body: body !== undefined ? JSON.stringify(body) : undefined,
     });
+    if (res && typeof res === 'object' && res.success === true) {
+      if (res.data && typeof res.data === 'object' && res.data.success === true) {
+        return res.data.data as T;
+      }
+      return res.data as T;
+    }
+    return res as T;
   }
 
   async callAsService<T = any>(pluginId: string, path: string, body?: any): Promise<T> {
@@ -324,9 +331,19 @@ export class CoreService {
       source: this.serviceName,
       timestamp: Date.now(),
     };
-    this.client.emit(pattern, event).subscribe({
-      error: (err) => this.logger.error(`Failed to emit event ${pattern}:`, err),
-    });
+    try {
+      const conn = await amqp.connect(this.getRMQUrl());
+      const ch = await conn.createChannel();
+      await ch.assertExchange('system_events', 'topic', { durable: true });
+      ch.publish('system_events', pattern, Buffer.from(JSON.stringify({
+        pattern,
+        data: event,
+      })));
+      await ch.close();
+      await conn.close();
+    } catch (err: any) {
+      this.logger.error(`Failed to emit event ${pattern}: ${err.message}`);
+    }
   }
 
   async auditLog(action: string, resource: string, details?: any): Promise<void> {
@@ -399,14 +416,26 @@ export class CoreService {
   }
 
   async sendNotification(payload: { userId: number | null; title: string; message: string; icon?: string; image?: string; details?: any }): Promise<void> {
-    await this.emit('system.notification.send', {
-      userId: payload.userId,
-      title: payload.title,
-      message: payload.message,
-      icon: payload.icon,
-      image: payload.image,
-      details: payload.details,
-    });
+    try {
+      const conn = await amqp.connect(this.getRMQUrl());
+      const ch = await conn.createChannel();
+      await ch.assertExchange('system_events', 'topic', { durable: true });
+      ch.publish('system_events', 'system.notification.send', Buffer.from(JSON.stringify({
+        pattern: 'system.notification.send',
+        data: {
+          userId: payload.userId,
+          title: payload.title,
+          message: payload.message,
+          icon: payload.icon,
+          image: payload.image,
+          details: payload.details,
+        },
+      })));
+      await ch.close();
+      await conn.close();
+    } catch (err: any) {
+      this.logger.error(`[sendNotification] Failed: ${err.message}`);
+    }
   }
 
   getDbName(): string {