Centralize SemVer versioning with nightly/stable pipeline support

[karthiknadig]

Problem

The version is hardcoded as 0.1.0 independently in each of the 26 sub-crate Cargo.toml files. There's no single place to set the version, and the CI pipelines don't stamp versions before building. This makes it impossible to distinguish nightly from stable builds, and version bumps require editing 26+ files.

Solution

1. Centralize version in workspace Cargo.toml under [workspace.package]
2. All sub-crates inherit via version.workspace = true
3. Add a set-version.ps1 script that pipelines call in preBuildSteps
4. Use $(Build.BuildId) as the nightly suffix to guarantee all platform builds in the same pipeline run get an identical version

Usage

# Stable release
./set-version.ps1 -Version 1.0.0

# Nightly (all platforms get same version via Build.BuildId)
./set-version.ps1 -Version 1.0.0 -Suffix "dev.$(Build.BuildId)"

Affected Files

• Root Cargo.toml — add version, edition to [workspace.package]
• All 26 crates/*/Cargo.toml — switch to version.workspace = true
• New set-version.ps1 script
• azure-pipelines/pre-release.yml and stable.yml — add version step to preBuildSteps