no response from ai already several times happing when i create new chat work...

no response from ai already several times happing when i create new chat works but after sometimes again stucks and won't work

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| Field | Value |
| --- | --- |
| App version | 1.0.25 |
| OS | macOS 26.5.2 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 2 |

Start by reproducing the issue in the /chat path using app version 1.0.25 on macOS 26.5.2: create a new chat, confirm it initially works, and observe when responses stop. Done means the intermittent no-response behavior is diagnosed and no longer occurs in the reported scenario, with the result verified through a repeatable test.

索引モデルが issue の本文から書いたものです。