A plain `docker build .` stamped `dev`: `.dockerignore` left out `.git`
and the Dockerfile defaulted VERSION to `dev`. `.dockerignore` now
sends `.git` without `.git/config`. Given no build arguments, the
builder stamps `git describe --tags --always` and the commit and date
from git, and fails if `.git` is present but yields no version. The
empty CHECK_EPOCH refusal is gone so the plain build succeeds.
`script/version` now prints `git describe --tags --always --dirty`, so
make, the scripts and a plain build agree. `vaultik version` treats
the short commit, tag-N-gHASH forms and any version ending in `-dirty`
as development builds, so they keep the development-build notice.
Model: opus-5-5
clawbot