Terminal rendering corruption - banner repeats/overlaps output on Windows/Warp

Describe the bug
The Claude Code ASCII art title banner (logo + version info) gets repeatedly printed to the terminal, causing visual corruption where the banner overlaps with normal output text. The issue worsens over time — the longer the session runs, the more the banner duplicates on each command, making the terminal output unreadable.

Screenshots / Example Output

 ▐▛███▜▌   Claude Code v2.1.126
▝▜█████▛▘  deepseek-v4-pro[1m] · API Usage Billing
  ▘▘ ▝▝    C:\Users\wjh92

> /mcp                                                                                                                      
  ⎿  MCP dialog dismissed                                                                                                   
                                                                                                                            
> Unknown command: /docter. Did you mean /doctor?                                                                           
                                                                                                                            
> 你是谁                                                                                                                    
                                                                                                                            
● 我是 Claude Code，Anthropic 的官方命令行 AI                                                                               
  编程助手。我可以帮你完成软件工程任务，比如阅读和编辑代码、调试、搜索代码库、运行命令、                       Claud      ▐▛███▜▌   Claude C ▐▛███▜▌   Claude Co ▐▛███▜▌   ▐▛███▜▌   Claude Code v2.1.126
▝▜█████▛▘  deepseek-v4-pro[1m] · API Usage Billing
  ▘▘ ▝▝    C:\Users\wjh92

 ▐▛███▜▌   Claude Code v2.1.126
▝▜█████▛▘  deepseek-v4-pro[1m] · API Usage Billing
  ▘▘ ▝▝    C:\Users\wjh92

The banner repeats increasingly — after many commands, it can appear dozens of times per prompt.

Environment:

• OS: Windows 11 Pro 10.0.26200
• Terminal: Warp
• Claude Code version: v2.1.126
• Model: deepseek-v4-pro[1m]
• Shell: bash (Git Bash / MinGW)

Steps to reproduce

1. Open Claude Code in Warp terminal on Windows
2. Use commands like /mcp repeatedly
3. Over time, the ASCII art banner starts duplicating on each render
4. Eventually the banner appears multiple times on every prompt, overlapping actual output text

Additional context
The issue seems related to terminal TUI repaint/refresh handling, possibly specific to certain terminal emulators on Windows like Warp.