fix: fresh install archives stale state of a previous installation; a fatal Agent loop error stops the service instead of leaving a dead 'Running' one; 1.2.3

Found by uninstall + fresh install on the clean Windows Sandbox: the old agent_state.sqlite identity conflicted with the new enrollment and the service sat idle.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

agent/service/gti_agent_windows_service.py

@@ -81,7 +81,14 @@ if win32serviceutil is not None:
                 servicemanager.LogErrorMsg("GTIFiscalAgent: startup preflight failed; see the agent log")
                 win32event.SetEvent(self.stop_event)
                 return
-            agent_service.run(config, os.environ, stopper=self.stop_flag)
+            try:
+                agent_service.run(config, os.environ, stopper=self.stop_flag)
+            except BaseException as error:  # noqa: BLE001 - a dead loop must never look like a healthy "Running" service
+                import logging
+                logging.getLogger("gti_fiscal_agent").exception("fatal error in the Agent loop; stopping the service")
+                servicemanager.LogErrorMsg(f"GTIFiscalAgent: fatal error, stopping: {type(error).__name__}: {error}")
+                self.stop_flag.stop = True
+                win32event.SetEvent(self.stop_event)
 
 
 def main():