Fix process shutdown bugs: remove incorrect killed flag check and snapshot map keys during iteration

Author: cursoragent

src/mcp/tools/swift-package/active-processes.ts

@@ -64,7 +64,7 @@ async function terminateProcess(
     return { error: error instanceof Error ? error.message : String(error) };
   }
 
-  const alreadyExited = info.process.exitCode != null || info.process.killed === true;
+  const alreadyExited = info.process.exitCode != null;
   if (alreadyExited) {
     return {};
   }

src/utils/video_capture.ts

@@ -113,7 +113,8 @@ function ensureSignalHandlersAttached(): void {
   signalHandlersAttached = true;
 
   const stopAll = (): void => {
-    for (const simulatorUuid of sessions.keys()) {
+    const simulatorIds = Array.from(sessions.keys());
+    for (const simulatorUuid of simulatorIds) {
       void stopSession(simulatorUuid, { timeoutMs: 250 });
     }
   };