[General] Allow multiple session renames.

**Mood:** 😊
**Category:** General

Allow multiple session renames. In lieu of better categorization mechanisms like folders, I'd ilke to be able to use the sessions to rename themselves to indicate their status / progress / request for attention in a personalized, flexible manner

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| Field | Value |
| --- | --- |
| App version | 1.0.10 |
| OS | Windows 10.0.26200 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Day 7 (Week 1) |

The report points to the /chat session experience but names no source file or test. Start by tracing the existing session rename flow in the desktop app; done should be defined as supporting repeated, personalized renames and verified in the reported chat context.

Written by the indexing model from the issue text.