[ios] SpineCppLite module.modulemap header path error causes sub-pod dependency build failure

[m15822049431-design]

Issue Description
When integrating Spine, SpineCppLite, and SpineShadersStructs via CocoaPods (using podspecs from the 4.2 branch: https://raw.githubusercontent.com/EsotericSoftware/spine-runtimes/4.2/xxx.podspec), the build fails for sub-pod dependencies (e.g., a custom pod MySubPodModule that depends on Spine).

The error is:

• Header 'spine-cpp-lite.h' not found
• Could not build module 'SpineCppLite'
• Could not build Objective-C module 'Spine'

Root Cause
The module.modulemap of SpineCppLite in the 4.2 branch incorrectly references the header path. The actual header spine-cpp-lite.h is located in SpineCppLite/include/, but the modulemap declares header "spine-cpp-lite.h" (without the include/ directory prefix), leading to a file not found error during sub-pod compilation.

Reproduction Steps

1. Create a sub-pod (e.g., MySubPodModule) with s.dependency 'Spine', s.dependency 'SpineCppLite', s.dependency 'SpineShadersStructs'.
2. Integrate this sub-pod into a project via CocoaPods.
3. In the sub-pod’s code, add import Spine and build.

Expected Behavior
The sub-pod should compile successfully without header/module errors, just like the main project.

Environment

• CocoaPods: 1.16.2
• Xcode: 16.0
• Spine Runtimes Branch: 4.2