[Bug] Expensive API calls due to missing conversation memory in Claude Code

**Bug Description**
consultas caras por no tener memoria qu epago yo. le he pedido millones de veces que deben ser gratuitas si el error es de code

**Environment Info**
- Platform: win32
- Terminal: windows-terminal
- Version: 2.1.266
- Feedback ID: 1e58a395-1020-4b55-8a45-ba0e9a7f9996

**Errors**
```json
[{"error":"TelemetrySafeError: VirtualMessageList: itemKeys/messages length desync (keys=262 messages=261 range=[231,262))\n at cJt (B:/~BUN/root/chunk-achrwd73.js:36:27844)\n at Zye (B:/~BUN/root/chunk-achrwd73.js:36:20655)\n at Br (B:/~BUN/root/chunk-h285wy21.js:18:20178)\n at Lu (B:/~BUN/root/chunk-h285wy21.js:18:38344)\n at Zh (B:/~BUN/root/chunk-h285wy21.js:18:84425)\n at Gg (B:/~BUN/root/chunk-h285wy21.js:18:83425)\n at nc (B:/~BUN/root/chunk-h285wy21.js:18:83254)\n at Gh (B:/~BUN/root/chunk-h285wy21.js:18:79779)\n at qe (B:/~BUN/root/chunk-h285wy21.js:18:6261)\n at ke (B:/~BUN/root/chunk-h285wy21.js:18:4792)","timestamp":"2026-09-10T10:48:04.578Z"}]
```

Start by reproducing the report on Windows Terminal with Claude Code 2.1.266, using the supplied Feedback ID and the VirtualMessageList length-desync error as the initial evidence. Trace whether the reported conversation-memory failure is associated with the expensive API calls; done means the desync and resulting loss of memory or repeated requests no longer occur.

索引モデルが issue の本文から書いたものです。