Adds the autonomous /loop foundation: a headless `hack-house sbx save|publish`
subcommand so a non-TUI operator can persist a built VM to the host library
through the same canonical registry path the room UI uses (no schema drift).
- snapshot.rs: hoist register_saved_snapshot/publish_snapshot/oci_image_size out
of app.rs into a shared module used by both the TUI and the new CLI.
- registry.rs: advisory cross-process lockfile (~/.hh/registry.lock, O_EXCL spin
+ stale-reclaim) around every read-modify-write, plus atomic temp+rename store,
so concurrent /loop wave members can't clobber each other.
- main.rs: `Sbx { Save, Publish }` subcommand wired to the shared snapshot logic.
- skills/hh-loop: the loop doctrine — value rubric, adaptive 1-3 operator
topology, visible-tmux-by-default run flow, --record logs/film, wave scaling,
and safe `tmux -L hh-loop` teardown.
Proven end-to-end: built+verified a stdlib VM in a sandbox, headless
save+publish -> registry entry shareable:true with a portable tar.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase A: host-global VM registry (~/.hh/registry.json) joining opaque
snapshots to their .hh-agent manifests. New src/registry.rs (serde_json),
one Entry per saved VM with cached purpose/status/todo scraped from the
live container at save time. Reconcile-on-read self-evicts pruned images.
/sbx browse TUI lister + operator-side `registry list|show` reader.
Phase B: trading/skill VMs. Entry gains shareable/tags/share_path +
publish/get/list_shareable helpers. New TUI verbs /sbx publish <label>
[tag...], /sbx catalog @user, /sbx pull @user <label>. Wire protocol adds
_sbx:catreq/catalog/pullreq frames (parse_sbx). Receiver auto-loads a
received hh-snap-*.tar, reads the in-image manifest, and self-registers
(kept shareable for re-trade). Reuses the existing E2E /send + ft.rs
streaming transport.
podman gotcha fixed: `podman load` prints registry-qualified
`localhost/hh-snap:<label>` vs docker's bare tag — parse_loaded_tag now
finds the hh-snap: marker anywhere in the line (unit-tested both shapes).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
leetcrypt