Salvage the amico-plugin un-landed skills: #45 promote, #42 intonatoqick, the restricted 6th vault kind

[aarontrowbridge]

Important

Problem — amico-plugin is archived (read-only), but three pieces of un-landed content were ruled SALVAGE/LAND (audit #850, rulings 1–3): the interactive promote skill + visibility authoring tag (PR #45 — byte-identical to the dirty checkout), the intonatoqick public skill (PR #42 — the only other genuinely un-landed content), and the restricted 6th vault kind (PRs #48/#27 — the live prompt already routes restricted/team/public; the staged amico-vault skill still says five kinds).
Approach — Port each into amicode's skill surface (packages/extension/skills/ + the staged set) with tests: the promote skill follows the documented promotion semantics (promoted_from/to, copy-never-move); intonatoqick as the public QICK-handoff skill; the restricted kind lands in the skill's kind table + mount_store verification (the prompt↔skill disagreement closes).
Sources — the archived repo's PR diffs (readable via API) + ~/harmoniqs/amico-plugin until deleted (deletion = Aaron's click, after this merges).