chore: tighten pid logic

app/server/config/integration/cmdline.ts

@@ -1,3 +0,0 @@
-export function isHeadscaleServeCmd(cmdline: string): boolean {
-	return cmdline.includes('headscale') && cmdline.includes("serve");
-}

app/server/config/integration/proc.ts

@@ -7,7 +7,6 @@ import { ApiClient } from '~/server/headscale/api-client';
 import log from '~/utils/log';
 import { HeadplaneConfig } from '../schema';
 import { Integration } from './abstract';
-import { isHeadscaleServeCmd } from './cmdline.ts';
 
 type T = NonNullable<HeadplaneConfig['integration']>['proc'];
 export default class ProcIntegration extends Integration<T> {
@@ -39,9 +38,11 @@ export default class ProcIntegration extends Integration<T> {
 				try {
 					log.debug('config', 'Reading %s', path);
 					const data = await readFile(path, 'utf8');
-					if (isHeadscaleServeCmd(data)) {
-						return pid;
+					if (!data.includes('headscale') && !data.includes('serve')) {
+						throw new Error('Found PID without Headscale serve command');
 					}
+
+					return pid;
 				} catch (error) {
 					log.error('config', 'Failed to read %s: %s', path, error);
 				}