provide cli function stop, restart and reload for hbd

Thought for 1s

hbd/server/main.py

@@ -475,6 +475,16 @@ def run(config, config_path=None):
 
     notify_mod.initlog(logfile=config.get("logfile", "messages.log"))
     users_mod.load_users(config)
+
+    # Write pidfile
+    pidfile = config.get("pidfile", "")
+    if pidfile:
+        try:
+            with open(pidfile, "w") as f:
+                f.write(str(os.getpid()))
+        except Exception as e:
+            logger.warning("Failed to write pidfile %s: %s", pidfile, e)
+
     eventlog(None, "INFO", f"hbd version {__version__} starting up")
     
     if config_path:
@@ -497,6 +507,12 @@ def run(config, config_path=None):
         logger.info("hbd shutdown complete")
         eventlog(None, "INFO", f"hbd version {__version__} shutdown")
         notify_mod.closelog()
+        # Remove pidfile
+        if pidfile:
+            try:
+                os.unlink(pidfile)
+            except Exception:
+                pass
         # Explicitly close the loop
         try:
             # Cancel all remaining tasks