fix(processes): fix multiple clawx processes running concurently (#589)

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: Haze <hazeone@users.noreply.github.com>
Co-authored-by: paisley <8197966+su8su@users.noreply.github.com>
Co-authored-by: Felix <24791380+vcfgv@users.noreply.github.com>

electron/gateway/manager.ts

@@ -242,6 +242,7 @@ export class GatewayManager extends EventEmitter {
           await this.connect(port, externalToken);
         },
         onConnectedToExistingGateway: () => {
+
           // If the existing gateway is actually our own spawned UtilityProcess
           // (e.g. after a self-restart code=1012), keep ownership so that
           // stop() can still terminate the process during a restart() cycle.
@@ -250,6 +251,7 @@ export class GatewayManager extends EventEmitter {
             this.ownsProcess = false;
             this.setStatus({ pid: undefined });
           }
+
           this.startHealthCheck();
         },
         waitForPortFree: async (port) => {
@@ -356,6 +358,25 @@ export class GatewayManager extends EventEmitter {
     this.setStatus({ state: 'stopped', error: undefined, pid: undefined, connectedAt: undefined, uptime: undefined });
   }
 
+  /**
+   * Best-effort emergency cleanup for app-quit timeout paths.
+   * Only terminates a process this manager still owns.
+   */
+  async forceTerminateOwnedProcessForQuit(): Promise<boolean> {
+    if (!this.process || !this.ownsProcess) {
+      return false;
+    }
+
+    const child = this.process;
+    await terminateOwnedGatewayProcess(child);
+    if (this.process === child) {
+      this.process = null;
+    }
+    this.ownsProcess = false;
+    this.setStatus({ pid: undefined });
+    return true;
+  }
+
   /**
    * Restart Gateway process
    */
@@ -724,6 +745,7 @@ export class GatewayManager extends EventEmitter {
 
     this.process = child;
     this.ownsProcess = true;
+    logger.debug(`Gateway manager now owns process pid=${child.pid ?? 'unknown'}`);
     this.lastSpawnSummary = lastSpawnSummary;
   }