[barelyworkingcode]

Closes #627

PR 2 of 2 for #627 (PR 1: #639, the pin). The Agents board offers Adopt, or Interrupt and adopt, on a Claude row on an SSH host that relay marks adoptable. showsAdopt drops its host term; host_unsupported reads "Relay can't adopt sessions on this host."

Non-obvious decisions:

• The Agents rail has no host chip, and the contract forbids a new one. G6.110 and the tests read "host chip" as the row naming its host project.
• The journey list lives in devboxverify/journeys.js; the planner amended ownership by one line (Amendment 1 on Offer Adopt on SSH-host rows that relay marks adoptable #627 and Verify and close the host-adopt epic (eve) #628).
• Approved behaviour change: the existing G6.107.r1 and G6.108.r1 expectations take the new host_unsupported text.
• outside-adopt-host is a screen journey; the nightly runs it.

Fix attempts: 0. Review rounds: 1 (Sonnet).

Minor review findings, not fixed:

• The host_link_lost spec asserts the "Can't adopt: " prefix, not relay's message text; the passthrough is pinned by other specs.
• The journey deletes the adopted session only when the 201 arrived.

Tests: three G6.110 cases in g6-outside-adopt.spec.js. Full Playwright suite at 4db42d1: 846 passed, 33 skipped, 0 failed.

Review: no blocking findings (Sonnet)
Journey: outside-adopt-host (screen; the nightly runs it), added in this PR
Break-and-restore: put && !r.item.hostId back into showsAdopt: two G6.110 cases failed (no Adopt button); restored byte for byte
Harness weakening: none (one journey added; nothing removed, skipped or loosened)
Main harness vs head: n/a: the screen journey runs in the nightly; eve's --stack run at the joint close covers the api journeys

🤖 Generated with Claude Code

[barelyworkingcode]

merge-check: merged. approved, target, contract, evidence, owner, weakening