Inject build version in CI and release packages

[0xShug0]

Summary

• pass AUDIOCPP_VERSION through release builds so tagged releases embed the release version
• add a -Version parameter to the Windows build helper
• pass AUDIOCPP_VERSION through CPU/CUDA/Vulkan Docker builds
• exercise the version parameter in regular Linux/macOS/Windows CI and server-memory CI

Follow-up to #469.

Validation

• parsed touched GitHub workflow YAML files successfully
• parsed scripts/build_windows.ps1 with PowerShell successfully
• ran git diff --check
• locally built Debug CPU/CUDA/Vulkan CLI and server with AUDIOCPP_VERSION=0.7.2-dev; both report audio.cpp 0.7.2-dev
• locally built Debug CPU/Vulkan-only CLI and server with AUDIOCPP_VERSION=ci; both report audio.cpp ci and backends: cpu,vulkan
• checked release tag normalization: v0.7.2 and 0.7.2 both resolve to 0.7.2