Harden Windows release workflow

[interlinkglobal]

Repairs the release workflow so Interly no longer depends on remembering a v prefix.

• accepts any tag but validates it against the package version;
• derives installer/manifests version data instead of hard-coding 0.6.0;
• supports manual workflow_dispatch against an existing release tag, which lets us repair the asset-less 0.6.0 release without changing application code;
• keeps release asset overwrite explicit for safe re-runs.