Resolve the nix-flake-packaging spec's open verification item by observation
rather than inference, and act on the unfavourable answer.
`resolvePortableHookCommand` in axi-sdk-js returns the bare binary name only
when a PATH entry realpath-matches the entrypoint. npm symlinks its bin entry
straight at dist/main.js and satisfies that; Nix installs a generated wrapper
script whose realpath is the wrapper, so the absolute store path is recorded
instead. Verified by probing the SDK with both install shapes and by driving
the flake-built binary against a temporary HOME.
The path is content-addressed, so it moves on every rebuild and is eventually
collected, and a session-start hook that cannot execute fails silently. The
mitigation is documentation, per the decision recorded when the item was
opened: the setup help text now says to re-run `setup hooks` after an upgrade.
How the setup command constructs the hook is deliberately unchanged. Preferring
the bare name is the right answer for every wrapper-based install, not a Nix
special case, so it belongs in a successor task with its own ADR alongside the
related `isManagedHook` substring defect. package.nix's postUnpack rename
therefore stays; its comment no longer promises this task will remove it.
Add the design record for distributing gitea-axi as a Nix flake: a
package, a development shell, and a checks output, plus the continuous
integration changes that come with it.
ADR 0018 records the wrapper's deference to the operator's own `git` and
`tea` — the reverse of the hermetic instinct, chosen because `tea`
refreshes OAuth tokens in place and so must not have two versions
mutating one credential store.
Also records the `tea`-is-still-a-runtime-dependency gotcha, which ADR
0002's title obscures.
