minor fix

src/surveillance/surveillance.service.ts

@@ -23,11 +23,16 @@ export interface SystemMetrics {
 // Keep legacy alias so the Gateway compiles without changes
 export type MonitorPayload = SystemMetrics;
 
-// Command-based signatures — checked against p.command to avoid node.exe collisions
-const SERVICE_SIGNATURES: Record<string, string> = {
-  nestjs: 'main.js',
-  n8n:    'n8n',
-  ollama: 'ollama',
+const normalizeCommand = (cmd: string | null | undefined): string => {
+  if (!cmd) return '';
+  return cmd.toLowerCase().replace(/\\/g, '/').trim();
+};
+
+// Matcher functions — nestjs uses PID identity; others use .some() over signature arrays for resilience
+const SERVICE_MATCHERS: Record<string, (p: si.Systeminformation.ProcessesProcessData) => boolean> = {
+  nestjs: (p) => p.pid === process.pid,
+  n8n:    (p) => { const cmd = normalizeCommand(p.command); return ['n8n', 'n8n.exe', 'n8n-desktop'].some(sig => cmd.includes(sig)); },
+  ollama: (p) => { const cmd = normalizeCommand(p.command); return ['ollama', 'ollama_llama_server'].some(sig => cmd.includes(sig)); },
 };
 
 @Injectable()
@@ -103,15 +108,12 @@ export class SurveillanceService implements OnModuleInit, OnModuleDestroy {
   ): ServiceStatus[] {
     const ACTIVE_CPU_THRESHOLD = 1.0;
 
-    const statuses = Object.entries(SERVICE_SIGNATURES).map(([serviceName, signature]) => {
+    const statuses = Object.entries(SERVICE_MATCHERS).map(([serviceName, matcher]) => {
       if (processList.length === 0) {
         return { service: serviceName, pid: null, status: 'OFFLINE' as ServiceStatusType, cpu: 0, memory: 0 };
       }
 
-      // Single-pass filter by command — avoids node.exe collisions from name-only matching
-      const matches = processList.filter((p) =>
-        (p.command ?? '').toLowerCase().includes(signature.toLowerCase()),
-      );
+      const matches = processList.filter(matcher);
 
       if (matches.length === 0) {
         return { service: serviceName, pid: null, status: 'OFFLINE' as ServiceStatusType, cpu: 0, memory: 0 };