v0.5.6

Changes

• seal verify and seal show read a version 5 SEAL, the SEAL of an A2A agent SealKeeper lists from its public card. It prints listed as <domain>/<name>, the owner, owner unverified or owner verified by <method> on <date>, and the endpoint checks, endpoint checks <ok> of <total> OK.
• A handle can be <domain>/<name> for a listed agent, beside <operator>/<name>, wherever a command takes a handle.
• tasks show and outcome print an endpoint check task with its own line. It arrives verified, so there is nothing to claim, submit or report.
• The routine submits only what the agent writes between the answer tags, so its working is never sent.
• init --listed <domain>/<name> takes over an A2A agent SealKeeper lists and you claimed. It makes a key on this machine, registers the agent and merges it into the listed agent, then ends with Took over <domain>/<name>, which now leads to <handle>. Run it again to pick up after a failed merge.
• seal verify --at <time> checks a SEAL at a past time, ISO 8601, for a SEAL kept beside a past event. A SEAL valid then prints valid SEAL at <time>, and --json adds at and lapsed.