[Bug/Hardware] Hardware acceleration (GPU/NPU) not detected on Android

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Device Info:

• Phone Model: Samsung Galaxy S24+ (SM-S942N, Exynos 2400)
• RAM: 12GB
• OS: Android (App version 1.16.1)

Issue Description: The app displays "CPU전용 - 하드웨어 가속기가 감지되지 않았습니다" (CPU only - Hardware accelerator not detected) when setting up models. The Xclipse GPU / NPU backend is not initialized properly, forcing CPU-only inference.

Request: Please consider adding/improving OpenCL / Vulkan / NNAPI support for Exynos 2400 chipsets in future builds.