Refactor badge value normalization to remove nested ternary lint violations

[Copilot]

• Review new @copilot feedback and confirm required refactor scope
• Move duplicated toValueArray logic into shared helper in badge-list module
• Update DataTable and DescriptionCard badge renderers to reuse shared helper
• Validate with targeted lint/tests for affected components
• Run CodeQL check and push commit
• Reply to new PR comment with commit hash

[IzumiSy]

@copilot can you avoid using let and create a seperated function instead?

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commit: d699326

[Copilot]

@copilot can you avoid using let and create a seperated function instead?

Updated in e5018b0. I replaced the let-based normalization with a dedicated toValueArray helper function in both affected files and kept behavior unchanged.