feat(queen): rail fix + layer 4 AGENTS (9) — 27 agent specs, experience join, Agent Explorer

[gHashTag]

Round 2 — item A (rail bug) + item B (layer 4: AGENTS)

Two commits, in order, so the rail fix can be cherry-picked on its own:

1. fix(queen): command rail derives its rows from the item count, COLLAPSE stays last
2. feat(queen): layer 4 AGENTS (9) — 27 agent specs, experience join, Agent Explorer

Companion t27 PR: specs/agents (27 specs + README) and the i18n SCOPE change — the vendored copies under public/t27/files/specs/agents/ and specs/i18n/ in this PR are byte-identical to it (README differs only by the "Where this lives" note in t27).

A. Rail fix (src/pages/Queen.css, QueenCommand.tsx, qa/queen-viewport-contract.mjs)

• Cause: .queen27-page.is-shell .queen27-hud-command { grid-template-rows: repeat(6, auto) minmax(0,1fr) auto } hardcoded six rows; SKILLS (7), CRONS (8) and now AGENTS (9) fell into the spacer track under «СВЕРНУТЬ».
• Fix: the rail is a flex column; COLLAPSE pins to the bottom with margin-top: auto; the item count is read from commandItems (data-views, --queen-views, --queen-tile-rows on the nav). Below 760 px height the rail becomes two columns of tiles with COLLAPSE as the last full-width row (the media block is placed after the base rules so display:grid wins the cascade — same specificity).
• QA: queen-viewport-contract.mjs gains 1280×700 and rail assertions (RAIL COUNT MISMATCH / ITEM OUTSIDE / OUT OF ORDER / COLLAPSE ABOVE A VIEW BUTTON). No other repeat(6/nth-child(6) selector was tied to the rail (Queen.css hud-res rules are the top bar, unrelated).
• Measured with headless Chromium (playwright cache) at 1280×600 / 700 / 900, RU: 9 items above COLLAPSE, no overflow (collapseBelowAll=true, overflow=false at all three). Screenshots attached in the report.

B. Layer 4 — AGENTS (key 9, «АГЕНТЫ» / AGENTS)

• Specs: 27 × specs/agents/<letter>.t27 (module agent_<letter>, KIND="agent", ID="t27/", LETTER, NAME, DOMAIN, ARCHETYPE, REGISTER, LAYER, SOUL, AGENTS_DOC, ALPHABET, KEY_FILES, ENTRY/EXIT_INVARIANT, CLARA_ROLE, SKILLS + SKILLS_NOTE, EXPERIENCE_LOG, ENABLED). 27/27 typecheck ok through public/t27/t27_compiler.wasm. English-only (rg '[\p{Cyrillic}]' public/t27/files/specs → empty).
• Skill binding rule (README): a skill is bound only when a source evidently binds it. Today only T (.claude/agents/trinity.md names phi-loop and tri-pipeline); the other 26 carry SKILLS = [] and a SKILLS_NOTE. OWNERS.md rows are catalog ownership, not held skills.
• Experience (scripts/sync-agents-experience.mjs → public/agents/experience.json): reads .trinity/experience/** from this checkout (440 files, 383 episodes, 56 unreadable, 1 note) and from the t27 checkout via T27_ROOT (2 files, 3 episodes). Attribution rule is explicit (attribution.fields, attribution.letters). Result: 0 attributed, 386 unattributed — no episode names an agent letter ((no agent field) ×385, claude-opus-4.6 ×1). Nothing is assigned by guess.
• Generator (scripts/agents-from-specs.mjs → public/agents/spec-agents.json): skills resolved (unknown id fails), crons derived from RUNS (0 today — no cron spec has RUNS), experience joined by LETTER, SOUL.md / AGENTS.md / alphabet links pinned at the t27 snapshot commit (2de523f), witness spec+experience | spec-only (27 spec-only), ladder {specs 760, skills 26, crons 33, agents 27}. --check covers the new output.
• i18n: specs/i18n/agents-ru.t27 SCOPE → ["specs/skills","specs/crons","specs/agents"]; apps/website/i18n/agents.ru.json +27 entries; coverage 27/27.
• UI: src/pages/AgentExplorer.tsx (#/agents, ?agent=<LETTER>, ?embed=1) — ladder header Specs → Skills → Crons → Agents with live counts; library of 27 letters grouped by LAYER; detail = SPEC panel first (AgentSpecPanel kind="agent"), «Душа и закон», skills chips → #/skills?skill=, crons chips → #/crons?cron=, «Опыт» (says "no attributed episodes" when 0 and shows the snapshot's unattributed count), «Инварианты», «Инструменты» placeholder (layer 5), CONTROL strip (Изменить в спеке → / Открыть SOUL.md / AGENTS.md / Журнал опыта). Queen: view + module agents key 9 (HUD_KEYS 1-9,0,p), ModulesBlock eight → nine. Route in src/main.tsx.

Checks run (cwd apps/website)

npm run prebuild · node --test scripts/agents-from-specs.test.mjs (30 pass) · node scripts/agents-from-specs.mjs --check · node scripts/sync-agents-experience.mjs --check · npm run typecheck + node scripts/typecheck-ratchet.mjs (179/26 = baseline) · npm run lint (180 = baseline) · npm run build · check:agents · check:spec-catalog · check:skills-catalog · check:crons-catalog · check:explorer-languages (5 pages) · check:queen-languages · check:shared-core · check:queen-{atlas,treasury,catalog,continuous,spec-mirrors,coverage,worlds,city,construction,hardware,responsive} — all PASS. check:queen-viewport (Chromium): no rail failures; remaining failures are pre-existing on main (UNDECLARED SCROLLER .queen27-hud-viewport, STATUS SLOT MISSING alerts, NOT EXACTLY ONE VIEW RENDERED comb, phone .is-compact horizontal scroller). Pre-existing FAIL unchanged: check:queen-{honesty,cycle,factory,review}.

Boundaries

• in vendored corpus manifest: 0/59+27 — public/t27/manifest.json is not hand-edited; sync-t27-specs re-run is the owner's step.
• No episode is attributed to any agent: the experience section is honest about that, not decorative.
• .tool_artifacts/ untouched. No secrets. Do not merge — owner review.