Every error now includes a diagnostic message:
- noMatchingVersion: shows the regex used, how many tags were
checked, and sample tag names so users can see why matching failed
- noReleasesFound: distinguishes "no releases at all" from "no match"
- invalidIdentifier: shows the problematic identifier string
- unexpected: includes HTTP status codes from provider APIs
getLatestRelease returns { release } | { noMatch: reason } instead
of Release | null, carrying the diagnostic through.
Thomas Camlong
2155f13f24