Functional improvement suggestions

What variant of Codex are you using?

Mac App 26.614.11602

What feature would you like to see?

1、Change it to point 1.
<img width="512" height="460" alt="Image" src="https://github.com/user-attachments/assets/9064339a-8786-49aa-9694-98503fd884b1" />
The current file sidebar only supports searching by file name. However, in real-world usage scenarios, users may only have some vague keywords or code snippets and need to search across a large project directory, which is not supported at present. Users can only first locate the corresponding file, then open it and perform a search within it, making the overall process very time-consuming. It is unclear whether the original design intention was for users to handle everything through dialogue, but while idealistic, this is not realistic because extensive retrieval not only consumes time but also uses a large number of tokens, which does not align with most users' use cases. In many situations, users are accustomed to focusing on a specific area of business they are familiar with before taking action, which saves a lot of time.

2、Change it to point 2.
<img width="1366" height="1252" alt="Image" src="https://github.com/user-attachments/assets/0cf5f47a-c903-442d-a05f-268257a00b4f" />
After opening the file, editable functionality should be added, because for some minor changes, users could modify them directly on the page instead of always having to rely on conversation-based solutions. This does not align with good product design — a great product should anticipate user needs and reduce their concerns.

Additional information

_No response_