SmartStore 13.2.1 XCFramework appears unsigned while repackaging FMDB

## Summary

The official Salesforce Mobile SDK iOS SPM distribution for version 13.2.1
provides SmartStore as a prebuilt binary XCFramework.

The distributed SmartStore XCFramework appears to be unsigned, while the
binary contains repackaged FMDB classes such as `FMDatabase`,
`FMDatabasePool`, `FMDatabaseQueue`, and `FMResultSet`.

Apple explicitly lists FMDB as an SDK requiring a privacy manifest and, when
used as a binary dependency, an SDK signature. Apple's documentation also
states that this requirement applies to SDKs that repackage a listed SDK.

Reference:
https://developer.apple.com/support/third-party-SDK-requirements/

## Environment

- Salesforce Mobile SDK for iOS: 13.2.1
- Distribution:
https://github.com/forcedotcom/SalesforceMobileSDK-iOS-SPM
- Artifact: `SmartStore.xcframework.zip`
- Integration: Swift Package Manager
- Xcode: 26.6
- Swift: 6.3.3
- SQLCipher: 4.10.0

## Verification

The official 13.2.1 SmartStore archive was inspected without modifying or
re-signing it.

Signature verification of the device framework fails:

```shell
codesign --verify --strict --verbose=4 \
SmartStore.xcframework/ios-arm64/SmartStore.framework

Inspect SmartStore.xcframework.zip from the Salesforce Mobile SDK iOS SPM distribution and start by running the reported codesign --verify --strict --verbose=4 check against SmartStore.xcframework/ios-arm64/SmartStore.framework. Compare the artifact's treatment of repackaged FMDB with Apple's third-party SDK requirements; done means the distributed SmartStore binary passes the required verification and includes the applicable compliance metadata.

Written by the indexing model from the issue text.