fix: resolve undefined variable KUBESTRONAUT_RECEIVERS in AckKubestro…

[codeMaestro78]

Summary

Fixes a NameError bug in Kubestronaut/AckKubestronautsReceived.py where the script would crash on execution.

Problem

The environment variable was stored in a variable named pwd:

pwd = os.getenv('KUBESTRONAUT_RECEIVERS')

[Copilot]

Pull request overview

This PR fixes a NameError bug caused by incorrect variable naming. The environment variable KUBESTRONAUT_RECEIVERS was being stored in a variable named pwd, which would cause a crash when the code attempted to reference KUBESTRONAUT_RECEIVERS on line 29.

Key Changes:

• Renamed variable from pwd to KUBESTRONAUT_RECEIVERS to match the actual variable name used later in the code

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[Copilot]

The variable name KUBESTRONAUT_RECEIVERS is misleading for its actual usage. On line 29, this variable is used as a Google Sheets key/ID in gc.open_by_key(KUBESTRONAUT_RECEIVERS). The name suggests it contains receiver information, but it actually stores a spreadsheet identifier. Consider renaming it to something more descriptive like KUBESTRONAUT_SHEET_KEY or KUBESTRONAUT_SPREADSHEET_ID to better reflect its purpose.

[Copilot]

Missing validation for the environment variable. If KUBESTRONAUT_RECEIVERS is not set in the environment, os.getenv() will return None, which will cause a runtime error when passed to gc.open_by_key() on line 29. Add error handling to check if the environment variable is set and provide a clear error message if it's missing.

Suggested change

	KUBESTRONAUT_RECEIVERS = os.getenv('KUBESTRONAUT_RECEIVERS')
	KUBESTRONAUT_RECEIVERS = os.getenv('KUBESTRONAUT_RECEIVERS')
	if not KUBESTRONAUT_RECEIVERS:
	raise RuntimeError(
	"Environment variable 'KUBESTRONAUT_RECEIVERS' is not set. "
	"Please set it to the Google Sheets key before running this script."
	)