Replace five literal "0.9.01" assertions with stampVersion()-relative checks and a parse round-trip; add testLeadingZeroFidelity() as a synthetic fixed-string pin so any REASAMPLER_VERSION bump no longer breaks the suite.
Fork the VST3 class UID (beta UID minted+frozen), on-disk name, and display
name by the one channel bit via app_version; couple UID selection to the
channel at compile time so a refactor can't split identity from data.
Compile-time channel flag forks a fully isolated reaper_reasampler_beta
(namespace, command-id prefix, action names, dock ident, -beta render) from
one auditable app_version definition. Stable identity byte-unchanged.
Version "0.9.01" sourced once from CMake via configure_file'd header; pure
app_version module (parse/compare/classify) with CTest. Stamp rides the persist
save seam under "reasampler"/"version"; absent stamp reads as pre-versioning.
On-demand "show version" action, no startup print.
daniel