[BUG] `opusplan` mode falls back to `sonnet 3.7` instead of `sonnet 4` for edits

Environment

• Platform (select one):
• [ ] Anthropic API
• [x] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.83 (Claude Code)
• Operating System: macOS 26 Tahoe
• Terminal: iTerm2

Bug Description

When using /model to set the specific model, the opusplan option says Use Opus 4.1 in plan mode, Sonnet 4 otherwise. Activating this plan uses opus 4.1 for plans but falls back to sonnet 3.7 for edits instead of sonnet 4

Steps to Reproduce

1. Open claude
2. Set /model to opusplan
3. Run a plan
4. Switch to edit mode
5. Run edits

Expected Behavior

Edit mode uses sonnet 4

Actual Behavior

Edit mode uses sonnet 3.7

Additional Context

<img width="461" height="81" alt="Image" src="https://github.com/user-attachments/assets/86f4336f-f506-4fbb-b346-9ddbaab47794" />