Right-click on performance report errors does not show dialogue with error descriptions

[HenkKalkwater]

Right clicking right now shows the default context menu of the browser, but it should show the details of the error message instead.

[HenkKalkwater]

So it most likely seems to arise from finmars-core, which returns exceptions in a different format if the environment variable DEBUG=True

[HenkKalkwater]

The error format when DEBUG=True:

{
	"error": {
		"datetime": "2026-02-16 15:29:52",
		"details": {
			"error_key": "no_first_transaction_date",
			"error_message": "'NoneType' object has no attribute 'transaction_date'",
			"traceback": "  File \"performance_report.py\", line 121, in build_report\n    self.instance.first_transaction_date = self.get_first_transaction()\n                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  File \"performance_report.py\", line 116, in get_first_transaction\n    raise FinmarsBaseException(error_key=\"no_first_transaction_date\", message=str(e)) from e\npoms.common.exceptions.FinmarsBaseException: 'NoneType' object has no attribute 'transaction_date'"
		},
		"message": "Server got itself in trouble",
		"status_code": 500,
		"url": "http://127.0.0.1/realm00000/space00000/api/v1/reports/performance-report/",
		"username": "admin"
	}
}

The error format when DEBUG=False:

{
	"error": {
		"url": "http://127.0.0.1/realm00000/space00000/api/v1/reports/performance-report/",
		"method": "POST",
		"username": "admin",
		"status_code": 500,
		"message": "Server got itself in trouble",
		"datetime": "2026-02-16 14:42:35",
		"details": {
			"type": "server_error",
			"errors": [
				{
					"code": "error",
					"detail": "'NoneType' object has no attribute 'transaction_date'",
					"error_key": "no_first_transaction_date",
					"attr": null
				}
			],
			"traceback": [
				"  File \"performance_report.py\", line 121, in build_report\n    self.instance.first_transaction_date = self.get_first_transaction()\n                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  File \"performance_report.py\", line 116, in get_first_transaction\n    raise FinmarsBaseException(error_key=\"no_first_transaction_date\", message=str(e)) from e\npoms.common.exceptions.FinmarsBaseException: 'NoneType' object has no attribute 'transaction_date'"
			]
		}
	}
}