Reorganize packages: move parameters, values, callbacks, exceptions, and loader to subpackages #284

Job	Run time
Start gate (abort window)	4s
Cross-Compile Linux aarch64 (LTS)	4m 44s
Cross-Compile Android aarch64 (OpenCL/Adreno)	4m 6s
Cross-Compile manylinux2014 x86_64	4m 45s
Cross-Compile Android aarch64	4m 53s
Code style (spotless) + package graph	41s
Cross-Compile manylinux_2_28 x86_64 (CUDA)	1h 12m 0s
Build and Test macOS 15 arm64 (no Metal)	54m 38s
Build and Test macOS 14 arm64 (Metal)	23m 1s
Build and Test macOS 15 arm64 (Metal)	52m 51s
C++ Tests Ubuntu Latest x86_64	5m 20s
Build and Test Windows 2025 x86_64 (VS 2026)	15m 14s
Build and Test Windows 2025 x86 (VS 2026)	14m 14s
Java Tests Ubuntu Latest x86_64	12m 31s
Java Tests Windows 2025 x86_64 (VS 2026)	13m 3s
Java Tests macOS 14 arm64 (Metal)	13m 57s
Java Tests macOS 15 arm64 (Metal)	19m 7s
Java Tests macOS 15 arm64 (no Metal)	10m 9s
Report	1s
Package JARs	1s
Check: v* tag	1s
Publish Release to Central	1s
Check: main branch / SNAPSHOT	1s
Update Snapshot Pre-release on GitHub	1s
Publish Snapshot to Central	1s
Attach Signed Binaries to GitHub Release	1s
	5h 25m 26s

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