When budgetCents is 0 (no budget set), the UI now shows "Unlimited
budget" instead of misleading "0% of $0.00 budget" throughout:
- Dashboard: metric card shows "Unlimited budget" instead of percentage
- Companies: shows "Unlimited budget" label instead of "/ $0.00"
- Costs: hides utilization percent and progress bar, shows "Unlimited budget"
- Inbox: suppresses budget utilization alert when no budget is set
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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