[FEATURE]: meta() for column builder

### Feature hasn't been suggested before.

- [X] I have verified this feature I'm about to request hasn't been suggested before.

### Describe the enhancement you want to request

It would be cool to be able to add meta data to a table or at least columns.

For example:
```ts
const table = pgTable("user", {
id: uuid("id").defaultRandom().primaryKey().meta({ description: "User ID" }),
})
```

This should not be stored anywhere except in ts in runtime.

No files, tests, or entry points are named. Start by locating the TypeScript column-builder and table definitions used by pgTable, then trace how a runtime-only meta value could be represented; done means the shown .meta({ description: "User ID" }) API works for a column without storing metadata elsewhere.

Written by the indexing model from the issue text.