Task: Restore AI design project sidebar

Identity

Task ID: 20260907-restore-design-project-sidebar-6f8b2a1c
Mode: Feature
Branch: codex/20260907-restore-design-project-sidebar-6f8b2a1c-restore-design-sidebar
Worktree: /Users/inmanx/Documents/makelore-restore-design-sidebar
Base commit: 918f8f80dc
Owner: codex
Status: Ready for Integration

Restore AI Design Workspace navigation to the left-side project rail on desktop.
Keep the central conversation and active production plan unchanged, and avoid a duplicate desktop project list on the right.
Preserve a compact-layout project Sheet for non-Electron/browser-sized viewports.
Update focused layout/Canvas tests, the shared Electron Canvas fixture, and README product-state copy.

Treat the user's report as explicit product-owner correction of the September 7 right-rail presentation decision.
Preserve ADR-007 semantic authority: one Workspace, one current Direction, one Living Form/Specification, one active plan, and immutable Quote confirmation.
Reuse the existing MainLayout Sidebar and ImageWorkspaceSidebar for desktop rather than introducing another project state owner.
Preserve Canvas cloud-only/Main-owned transport, project create/select/rename/delete behavior, the single light visual system, and compact-layout access.
Do not modify the concurrent Plugin drawer task or the occupied main worktree.

Canvas again mounts the shared application Sidebar on /image-canvas, so the existing ImageWorkspaceSidebar provides desktop Workspace create/select/rename/delete navigation on the left and the title-bar collapse/expand control is available again.
The shared Sidebar accepts a Canvas-only compact visibility policy: it is hidden below the desktop breakpoint so browser-sized compact layouts do not squeeze the conversation surface.
The Canvas page no longer renders a duplicate desktop DesignWorksRail on the right. Its conversation and active editable plan use the full remaining content width.
Compact layouts retain DesignWorksRail as a Sheet, now opening from the left. Empty-state project creation still routes to the mounted desktop Sidebar or compact Sheet through the existing event contract.
Canvas header spacing and loading skeleton now match the restored left sidebar, while retaining macOS logo and Windows caption-control safe areas.
README now describes the restored left project sidebar and compact left Sheet.

corepack pnpm install --frozen-lockfile — passed with pinned pnpm 10.33.4; lockfile unchanged.
corepack pnpm exec vitest run tests/unit/main-layout-module-gate.test.tsx tests/unit/image-canvas-page.test.tsx --maxWorkers=4 — 2 files / 21 tests passed.
corepack pnpm exec eslint src/components/layout/MainLayout.tsx src/components/layout/Sidebar.tsx src/pages/ImageCanvas/index.tsx tests/unit/main-layout-module-gate.test.tsx tests/unit/image-canvas-page.test.tsx tests/e2e/image-workspace-v2.spec.ts — passed with no output.
corepack pnpm run typecheck — passed.
corepack pnpm run build:vite — Renderer/Main/Preload/utility production compile passed; existing dynamic-import, chunk-size, and stale Browserslist warnings only.
corepack pnpm test — 226 normal files / 1,912 tests passed with 3 skips, then pressure 1/1 passed.
corepack pnpm run lint:check — 0 errors; 5 pre-existing warnings in src/pages/Home/index.tsx and src/pages/Makelore/index.tsx.
corepack pnpm exec playwright test tests/e2e/image-workspace-v2.spec.ts — 2/2 passed. Desktop geometry proves a 256 px left Sidebar directly adjacent to the conversation with no right duplicate; compact geometry hides the shared Sidebar and opens the Works Sheet from the left.
git diff --check — passed.

Promote the recorded Canvas placement amendment into canonical project memory during a serialized Integration Gate.

Target canonical documents: ADR-007, system overview, module/data-flow maps, business rules, current state, and any shared Canvas layout wording. Proposal: amend the Canvas presentation description from a right-side Works rail to the restored desktop left project sidebar, with compact layouts retaining a project Sheet. Evidence: direct user correction on 2026-09-07 plus the focused regression/Electron layout verification from this task. Future impact: future Canvas redesigns must keep Workspace navigation visible on the left unless another explicit product decision changes it. Semantic conflicts: supersedes only ADR-007's September 7 rail placement amendment; it does not change V2 Workspace/Specification/Quote authority. Human confirmation required: no additional confirmation; the user supplied the correcting product direction in this task.