fix: add SIGKILL fallback when SIGTERM does not stop the alarm

api/schema.py

@@ -2,6 +2,7 @@ import strawberry
 from typing import List, Optional
 import os
 import sys
+import time
 import subprocess
 import signal
 from pathlib import Path
@@ -138,6 +139,15 @@ class Mutation:
             with open(PID_FILE) as f:
                 pid = int(f.read().strip())
             os.kill(pid, signal.SIGTERM)
+            # Give the process a short grace period, then escalate to SIGKILL.
+            for _ in range(20):
+                time.sleep(0.1)
+                try:
+                    os.kill(pid, 0)
+                except ProcessLookupError:
+                    break
+            else:
+                os.kill(pid, signal.SIGKILL)
             if os.path.exists(PID_FILE):
                 os.remove(PID_FILE)
             return True