Usage breakdown percentages are confusing — not clear they're independent

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

The "What's contributing to your limits usage?" screen shows percentages that are not mutually exclusive, but there's no explanation of that. Most users will assume they add up to 100%.

Proposed Solution

Suggestion: add a note like "Each percentage is independent — a single session can appear in multiple categories" near the top of the screen.

Alternative Solutions

_No response_

Priority

Low - Nice to have

Feature Category

Other

Use Case Example

_No response_

Additional Context

_No response_