# Options Classes Relocation Design

## Summary

Move options classes from Core project to the projects that use them, establishing an `Options/` folder convention across all projects.

## Current State

All 7 options classes live in `JdeScoping.Core/Options/`:
- `AuthOptions` - used by Api + Infrastructure
- `DataSourceOptions` - used by Infrastructure
- `DataSyncOptions` - duplicate (real one in DataSync)
- `ExcelExportOptions` - duplicate (real one in ExcelIO)
- `LdapOptions` - used by Infrastructure
- `SearchOptions` - unused (future use in DataAccess)
- `SearchProcessingOptions` - used by DataAccess

## Target State

### Folder Structure

```
src/
├── JdeScoping.Api/
│   └── Options/
│       └── AuthOptions.cs
├── JdeScoping.DataAccess/
│   └── Options/
│       ├── SearchOptions.cs
│       └── SearchProcessingOptions.cs
├── JdeScoping.Infrastructure/
│   └── Options/
│       ├── DataSourceOptions.cs
│       └── LdapOptions.cs
├── JdeScoping.DataSync/
│   └── Options/                    # Renamed from Configuration/
│       └── DataSyncOptions.cs
├── JdeScoping.ExcelIO/
│   └── Options/                    # Renamed from Configuration/
│       └── ExcelExportOptions.cs
└── JdeScoping.Core/
    └── (Options folder deleted)
```

### Property Moves

**LdapOptions** gains properties from AuthOptions:
- `UseFakeAuth` (bool, default: false)
- `AdminBypassUsers` (string[], default: [])

**AuthOptions** loses those properties, keeping only:
- `CookieName` (string, default: "ScopingTool.Auth")
- `CookieExpirationMinutes` (int, default: 480)

### Namespace Changes

| Old Namespace | New Namespace |
|---------------|---------------|
| `JdeScoping.Core.Options.AuthOptions` | `JdeScoping.Api.Options.AuthOptions` |
| `JdeScoping.Core.Options.SearchOptions` | `JdeScoping.DataAccess.Options.SearchOptions` |
| `JdeScoping.Core.Options.SearchProcessingOptions` | `JdeScoping.DataAccess.Options.SearchProcessingOptions` |
| `JdeScoping.Core.Options.DataSourceOptions` | `JdeScoping.Infrastructure.Options.DataSourceOptions` |
| `JdeScoping.Core.Options.LdapOptions` | `JdeScoping.Infrastructure.Options.LdapOptions` |
| `JdeScoping.DataSync.Configuration.*` | `JdeScoping.DataSync.Options.*` |
| `JdeScoping.ExcelIO.Configuration.*` | `JdeScoping.ExcelIO.Options.*` |

### DI Registration Changes

**Infrastructure/DependencyInjection.cs:**
- Remove `AuthOptions` registration
- Change `authOptions?.UseFakeAuth` check to use `ldapOptions?.UseFakeAuth`

**Api/DependencyInjection.cs:**
- Add `AuthOptions` registration

### Configuration (appsettings.json)

Move settings from `"Auth"` to `"Ldap"` section:
```json
{
  "Ldap": {
    "ServerUrls": ["ldap.corp.example.com"],
    "GroupDn": "CN=ScopingTool-Users,OU=Groups,DC=corp,DC=example,DC=com",
    "SearchBase": "DC=corp,DC=example,DC=com",
    "ConnectionTimeoutSeconds": 30,
    "UseFakeAuth": false,
    "AdminBypassUsers": []
  },
  "Auth": {
    "CookieName": "ScopingTool.Auth",
    "CookieExpirationMinutes": 480
  }
}
```

## Files to Delete

- `src/JdeScoping.Core/Options/AuthOptions.cs`
- `src/JdeScoping.Core/Options/DataSourceOptions.cs`
- `src/JdeScoping.Core/Options/DataSyncOptions.cs`
- `src/JdeScoping.Core/Options/ExcelExportOptions.cs`
- `src/JdeScoping.Core/Options/LdapOptions.cs`
- `src/JdeScoping.Core/Options/SearchOptions.cs`
- `src/JdeScoping.Core/Options/SearchProcessingOptions.cs`
- `src/JdeScoping.Core/Options/` (folder)

## Files to Update

- `Host/Program.cs` - update using statements
- `Infrastructure/DependencyInjection.cs` - remove AuthOptions, use LdapOptions for UseFakeAuth
- `Infrastructure/Auth/LdapAuthService.cs` - update using, use LdapOptions for AdminBypassUsers
- `Api/DependencyInjection.cs` - add AuthOptions registration
- `DataAccess/DependencyInjection.cs` - update using statements
- `DataSync/**` - rename Configuration namespace to Options
- `ExcelIO/**` - rename Configuration namespace to Options
- `appsettings.json` - move UseFakeAuth/AdminBypassUsers to Ldap section