v0.12.0 - vNext contracts + shallow preview control

Released 2026-08-08.

New commands and run machinery

Packaged run-status and doctor commands (inventory grows from 4 → 6; ADR-0015 minor, not patch).
Persistent design contract v1 + structured G1–G6 diagnostics on the validate surface.
G7 contract drift gate against the bound contract snapshot.
Capture plan requires schemaVersion: 1 (fail-closed without it).
Orchestrator skill routes: load-map, first-run, a11y, and repair pointers (ADR-0016–0020).

Trusted parent control chrome (mcp/preview/control.*):

Abort uses an explicit second-confirm popover (replaces 4s arm): fixed viewport positioning, Tab trap, Cancel / Esc / outside dismiss.
Pill Revise is a real /decide submit (not open-drawer only).
Pill Confirm keeps arm → confirm mis-tap protection (no one-click Approve; no fake "LGTM" inject); Esc / outside click / timeout undo the arm.
Pill quick 1-line feedback (wide layouts only) shares state with the drawer textarea.
Status chip focuses the feedback field; Ctrl/Cmd+Enter always routes confirm through isSubstantive (ADR-0008 floor).
Visual tokens: control heights unified; float notes 999, bar 1000, drawer 1001; drawer overflow no longer clips the abort popover.

G5 sandbox / iframe pin bridge / decision token paths are unchanged.

Live HITL design-io dogfood 2026-08-08-vnext-live pass (confirm-round-2 + HTTP fill-host observe v1; G5/G6/G7 green).

Installable inventory: 8 model skills, 6 commands, 2 bundled MCP servers.
COMMAND_INVENTORY admits the 0.12 command set explicitly (stable main channel).

python scripts/validate.py — VALIDATION PASSED
Seam + contract v1 + G7 + vNext integration + vnext_live_dogfood.py preflight — green
python packages/design-playbook/tests/test_floor_frontend.py — FRONTEND FLOOR TEST PASSED (incl. A′ scenarios)
Preview MCP suites (test_browser_control, test_server_stdio) green