Instead of erroring when the owpengram pod is absent, build.sh now creates it
with the MTProto (2398), admin (2600), extra TCP (2400) and RTC/UDP port
mappings.
build.sh now, after building the image, recreates owpengram-server and
owpengram-admin in the pod (podman create --replace) and starts them. Guards
that the pod and .env exist; NO_DEPLOY=1 keeps the old build-only behaviour,
POD overrides the pod name.
.containerignore excludes .git, so go build's automatic VCS stamping produced
nothing and telesrv logged git_commit/git_branch/git_tree_state/build_time as
"unknown" on startup.
- Containerfile: accept GIT_COMMIT/GIT_BRANCH/GIT_TREE_STATE/BUILD_TIME build
args and pass them to the gramsrv build via -ldflags -X.
- build.sh: wrapper that fills those args from the current checkout and runs
podman build.
