Hot Fix: Backwards compatibility for results download spreadsheet

[Bill-Becker]

Enable the downloadable results spreadsheet to work with previous runs by avoiding errors when trying to do math with values of type None - handle None as zero/0:

• Modified the safe_get function in reoptjl/custom_table_helpers.py to ensure it returns a non-None value by falling back to 0 if both the key lookup and the default value are None. This improves robustness when handling missing or null data.
• Updated the bau_value and scenario_value lambdas in reoptjl/custom_table_config.py to use outputs.Financial.year_one_chp_standby_cost_* instead of outputs.CHP.year_one_standby_cost_* for robustness because Financial is always included and CHP is not.

[Copilot]

Pull Request Overview

This hot fix improves backwards compatibility of the downloadable results spreadsheet by ensuring that None values are handled as zeros. The PR updates the safe_get function in custom_table_helpers.py, adjusts financial key references in custom_table_config.py, and revises Julia deployment configurations in the helm values file.

• Modified safe_get to ensure non-None return values.
• Replaced outputs.CHP with outputs.Financial keys in lambda expressions.
• Updated Julia replica count and added a rolling update strategy in the helm configuration.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
reoptjl/custom_table_helpers.py	Enhanced safe_get function to return 0 instead of None.
reoptjl/custom_table_config.py	Updated standby cost key references to use outputs.Financial values.
.helm/values.production.yaml	Adjusted Julia replica count and added a deployment strategy.