Usage indicator randomly flickers between different percentages

The usage percentage display in the Claude Code corner intermittently switches between different values (e.g., 23% → 93% → 23%). This appears to be a flickering/refresh issue, possibly related to auth session state.

Steps to reproduce:

• Use Claude Code normally
• Observe the usage indicator in the corner

Expected:

• Usage percentage should be stable and consistent

Actual:

• Usage indicator flickers/changes unexpectedly between disparate values (23% and 93% observed)
• Behavior is intermittent

Environment:

• Claude Code (desktop/web/CLI)