fix(runtime): prevent memory leaks and improve shutdown/stream handling across services

ts/opsserver/handlers/logs.handler.ts

@@ -148,17 +148,17 @@ export class LogsHandler {
       }
       
       // For follow mode, simulate real-time log streaming
-      intervalId = setInterval(() => {
+      intervalId = setInterval(async () => {
         const categories: Array<'smtp' | 'dns' | 'security' | 'system' | 'email'> = ['smtp', 'dns', 'security', 'system', 'email'];
         const levels: Array<'debug' | 'info' | 'warn' | 'error'> = ['info', 'warn', 'error', 'debug'];
-        
+
         const mockCategory = categories[Math.floor(Math.random() * categories.length)];
         const mockLevel = levels[Math.floor(Math.random() * levels.length)];
-        
+
         // Filter by requested criteria
         if (levelFilter && !levelFilter.includes(mockLevel)) return;
         if (categoryFilter && !categoryFilter.includes(mockCategory)) return;
-        
+
         const logEntry = {
           timestamp: Date.now(),
           level: mockLevel,
@@ -168,10 +168,16 @@ export class LogsHandler {
             requestId: plugins.uuid.v4(),
           },
         };
-        
+
         const logData = JSON.stringify(logEntry);
         const encoder = new TextEncoder();
-        virtualStream.sendData(encoder.encode(logData));
+        try {
+          await virtualStream.sendData(encoder.encode(logData));
+        } catch {
+          // Stream closed or errored — clean up to prevent interval leak
+          clearInterval(intervalId!);
+          intervalId = null;
+        }
       }, 2000); // Send a log every 2 seconds
       
       // TODO: Hook into actual logger events