Unable to successfully initialize GRDB

[glve1027]

What did you do?

1. init GRDB on the main queue like this:

   final public class XXXXDBAppDatabase {
   
   fileprivate static let dbPathV2 = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).last! + "/test.db"
   
   static let shared = makeShared()
   
   private static func makeShared() -> XXXDBAppDatabase? {
       do {
           var config = Configuration()
           config.prepareDatabase { database in
               try database.execute(sql: "PRAGMA auto_vacuum = FULL")
           }
           let currentQueue = try DatabaseQueue(path: XXXDBAppDatabase.dbPathV2, configuration: config)
   
           // Create the AppDatabase
           let appDatabase = try XXXDBAppDatabase(currentQueue)
   
           return appDatabase
       } catch {
           Log(error.localizedDescription)
           print(error)
           return nil
       }
   }
   }

1. I got a error message from above method:

SQLite error 11: database disk image is malformed - while executing PRAGMA auto_vacuum = FULL

2. I notice that try database.execute(sql: "PRAGMA auto_vacuum = FULL") excute on Thread: GRDB.DatabaseQueue, I'm not sure this has anything to do with it.

3. I used two different serial queue to handle two different model, Although they are different objects. I'm not sure this has anything to do with it.

public struct AEvent {    // DispatchQueue(label: "handle.AEvent")
var ID: Int64?
var xxxx
}

public struct BEvent { // DispatchQueue(label: "handle.BEvent") var ID: Int64? var yyyy }

### I noticed another thing is: https://github.com/groue/GRDB.swift/issues/415. I don't update to readonly like this: `config.readonly = true`,  I'm not sure this has anything to do with it.

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### What did you expect to happen?

1. find the root cause why Unable to successfully initialize, and how to fix it?
<!-- Please replace this with what you expected to happen. -->

### What happened instead?
1. Unable to successfully initialize
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### Environment

**GRDB flavor(s):** (GRDB, SQLCipher, Custom SQLite build?)  GRDB
**GRDB version:**  `"GRDB.swift", "6.8.0"`"[GRDB.swift](https://cocoapods.org/pods/GRDB.swift)", "6.8.0"
**Installation method:** (CocoaPods, SPM, manual?)  CocoaPods
**Xcode version:**  Version 15.2
**Swift version:**  5.0
**Platform(s) running GRDB:** (iOS, macOS, watchOS?)iOS
**macOS version running Xcode:**

### Demo Project

<!-- Please link to or upload a project we can download that reproduces the issue. -->

[groue]

Hello @glve1027

I'm not sure this issue contains any more information than your previous issue #877. You did not seemed to care about the answers there. I'm unsure you'll care about the answers here. There's not point keeping issues open when people don't care about the answers.