Error occurs when adding data with preset function values.

I have set my data table with the following code:
`create_time TEXT DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))`
This is to automatically fill in the date when manually adding data.

At least that's how it works on the data table operation page in Cloudflare D1. However, when I tried to do the same in the program of this repository, it automatically filled in the text of the default function `strftime('%Y-%m-%dT%H:%M:%SZ', 'now')` itself.

Typically, it should work like this: automatically filling in the date when adding.

The issue does not name a file or test. Reproduce the problem by creating a table with the shown SQLite default expression and adding a record through the repository's data-table interface. Trace how column defaults are read and applied; done means function-valued defaults produce a generated timestamp rather than the expression text.

Written by the indexing model from the issue text.