Missing error check for SDL_SubmitGPUCommandBuffer in TextureWrapper

[coderabbitai]

Description

Missing error validation for SDL_SubmitGPUCommandBuffer in the texture upload path. If submission fails, the texture is still returned to the caller despite the upload potentially being incomplete.

Location

• File: sdl_wrapper/src/sdl_wrapper.texture.cpp
• Lines: ~97-98

Context

Flagged during code review of PR #41:

• PR: Texture #41
• Comment: Texture #41 (comment)

Expected Behavior

The function should check the return value of SDL_SubmitGPUCommandBuffer(cmd) and handle failures by cleaning up resources and returning an appropriate error code.

---

Requested by: @WSQS