feat(v3): always-visible Variables panel + v3 polish (v0.18)#87
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Layout: make Variables (anchors) persistently visible instead of buried in the Settings drawer, plus the Tier-5 polish trio. - Split the left Library column into two stacked panels: Conditions (top) + Variables (bottom). Widen the column 280→320px. Extract renderVariables(host) from renderSettings (drawer now holds Experiment Info / Rig / Plugins only); wire it into renderAll and the variable handlers' error paths. In import mode the panel renders read-only (inputs disabled, no add/delete) alongside the locked library — consistent with the D4 lock. - Drop the in-tool "Beta / Editor" badge (span + CSS). Landing-page chip stays "Beta" per request. - New experiment_designer_v3_quickstart.html (modeled on the v2 quickstart): interface overview, edit/export walkthrough, the D4 cross-library import flow, key concepts, shortcuts. Linked from a new "Quick Start" header button. - New docs/development/v3-matlab-validation.md (Phase 8): the web→MATLAB validation flow — web side CI-green (576 checks), MATLAB side documented as a manual MCP-driven gate. Resolves the stale pointer in the v3 test header. - handoff-2: mark Phase 8 + Phase 9 shipped. Footer v0.17 → v0.18. No js/ or test changes — pure UI/doc. npm test green (arena 10 · v2 137 · v3 576). Browser-verified: Variables panel renders + edits + single-step undo; drawer no longer lists Variables; import mode locks the panel; badge gone, layout intact; quickstart loads and links back. No console errors. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What this is
Two requested changes to the v3 Experiment Designer, in one round.
1. Variables always visible
The
variables:(anchors) editor was only reachable inside the collapsibleSettings drawer. It's now a persistent panel in the left column: the Library
column is split into Conditions (top) + Variables (bottom).
renderVariables(host)extracted fromrenderSettings→ renders into the new#variablesPanel; the drawer keeps Experiment Info / Rig / Plugins only.renderAlland the variable handlers' error paths. Left grid columnwidened 280→320px.
renders read-only (inputs disabled, add-row/delete hidden) beside the locked
library — consistent with the D4 lock.
2. v3 polish (handoff §3 Tier 5)
stays "Beta" (per decision).
experiment_designer_v3_quickstart.html(new) — modeled on the v2quickstart: interface overview, edit→export walkthrough, the D4 cross-library
import flow, key concepts, shortcuts. Linked from a new Quick Start header
button.
docs/development/v3-matlab-validation.md(new, Phase 8) — the web→MATLABvalidation flow: web side CI-green (576 checks), MATLAB side documented as a
manual MCP-driven gate. Resolves the stale pointer already in the v3 test header.
Tests
Browser-verified: Variables panel renders under Conditions; edit a scalar →
single-step Undo reverts; Settings drawer no longer lists Variables (Info/Rig/
Plugins only); enter import → panel locks read-only, cancel → editable again; Beta
badge gone with layout intact; quickstart page loads with all sections + working
back link. Zero console errors. Screenshot of the split layout in the session.
🤖 Generated with Claude Code