`/cost` overstates cost when on max subscription

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: <!-- output of claude --version --> 0.2.114
• Operating System: <!-- e.g. macOS 14.3, Windows 11, Ubuntu 22.04 --> MacOS
• Terminal: <!-- e.g. iTerm2, Terminal App --> Alacritty

Bug Description

after a token expires, /cost reports costs as though I'm not on a Max subscription:

====================================================================== Previous Conversation Compacted ======================================================================

> This session is being continued from a previous conversation that ran out of context. The conversation is summarized below:
  Invalid API key · Please run /login.

> /compact
  ⎿  (no content)

> /cost
  ⎿  Total cost:            $19.64
     Total duration (API):  1h 13m 17.9s
     Total duration (wall): 12h 1m 56.9s
     Total code changes:    3989 lines added, 1577 lines removed
     Token usage by model:
         claude-3-5-haiku:  236.1k input, 11.6k output, 0 cache read, 0 cache write
        claude-3-7-sonnet:  1.4k input, 169.9k output, 31.5m cache read, 2.0m cache write

while not shown, I checked this because it warned me I'd spent $5 (which similarly was overstating the cost)

there was NO actual charge — you can see where I started the Max subscription:

<img width="418" alt="Image" src="https://github.com/user-attachments/assets/22d21968-39a4-4fc6-8ff9-6c59127e9e45" />

(thanks again for the such an incredible product! top 10 product of the decade)