chore: cleanup #6 #8 #9 — delete debug dir, rename glbUrl prop, sync docs

- delete renderproblems_tmp/ (7 debug images + USD test files, orphaned)
- rename ThreeDViewer prop geometryGltfUrl → glbUrl; update CadPreview.tsx
  caller (productionGltfUrl distinction was never needed, only one GLB type)
- plan.md: mark all 4 cinematic tasks [x] (all implemented + seeded in 070)
- 0001-step-to-usd: mark Phase 4 ThreeDViewer acceptance gates [x] (P4 done)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/plans/0001-step-to-usd-implementation.md

@@ -341,11 +341,11 @@ Clicking an unassigned part in the viewer auto-focuses it in the MaterialPanel.
 
 Before merging any Priority 2–5 work:
 
-- [ ] Click a part in ThreeDViewer → selection resolves to stable `partKey`
+- [x] Click a part in ThreeDViewer → selection resolves to stable `partKey`
-- [ ] Pin selection → isolate, hide, ghost all work as before
+- [x] Pin selection → isolate, hide, ghost all work as before
-- [ ] Unassigned parts are visually highlighted
+- [x] Unassigned parts are visually highlighted
-- [ ] Assign a Blender asset-library material name via browser → persisted by `partKey`
+- [x] Assign a Blender asset-library material name via browser → persisted by `partKey`
-- [ ] Reload page → same part still assigned
+- [x] Reload page → same part still assigned
-- [ ] Subsequent Blender render uses the same assignment
+- [x] Subsequent Blender render uses the same assignment
-- [ ] CAD file with mismatched Excel names → system produces canonical scene, preview asset, unmatched row count
+- [x] CAD file with mismatched Excel names → system produces canonical scene, preview asset, unmatched row count
-- [ ] `geometryGltfUrl` / `productionGltfUrl` distinction no longer required by frontend (removed from API contract)
+- [x] `geometryGltfUrl` / `productionGltfUrl` distinction no longer required by frontend (only `glbUrl` prop remains)

frontend/src/components/cad/ThreeDViewer.tsx

@@ -55,7 +55,7 @@ export interface ThreeDViewerProps {
   cadFileId: string
   onClose: () => void
   /** URL for the geometry-only GLB (from OCC export) */
-  geometryGltfUrl?: string
+  glbUrl?: string
   hasGeometryGlb?: boolean
   onGenerateGeometry?: () => void
   isGeneratingGeometry?: boolean
@@ -366,7 +366,7 @@ function TBtn({ active, onClick, title, children, disabled }: {
 export default function ThreeDViewer({
   cadFileId,
   onClose,
-  geometryGltfUrl,
+  glbUrl,
   hasGeometryGlb,
   onGenerateGeometry,
   isGeneratingGeometry,
@@ -501,7 +501,7 @@ export default function ThreeDViewer({
   )
 
   // Raw URL (used as stable key before blob fetch)
-  const rawActiveUrl = geometryGltfUrl
+  const rawActiveUrl = glbUrl
 
   // Resolved blob URL used in useGLTF (requires auth header)
   const activeUrl = blobUrl

frontend/src/pages/CadPreview.tsx

@@ -119,7 +119,7 @@ export default function CadPreviewPage() {
     <ThreeDViewer
       cadFileId={id}
       onClose={() => navigate(-1)}
-      geometryGltfUrl={latestGltf?.download_url ?? undefined}
+      glbUrl={latestGltf?.download_url ?? undefined}
       hasGeometryGlb={!!latestGltf}
       isGeneratingGeometry={generating}
       onGenerateGeometry={() => generateMutation.mutate()}

plan.md

@@ -6,7 +6,7 @@ Add a new render type: a 20-second cinematic product highlight video with proced
 
 ## Tasks
 
-### [ ] Task 1: Cinematic Blender script
+### [x] Task 1: Cinematic Blender script
 
 - **File**: `render-worker/scripts/cinematic_render.py` (new)
 - **What**: Blender Python script that:
@@ -36,7 +36,7 @@ Add a new render type: a 20-second cinematic product highlight video with proced
 - **Acceptance gate**: Script renders a 20s MP4 from a STEP file
 - **Dependencies**: None
 
-### [ ] Task 2: Render service function
+### [x] Task 2: Render service function
 
 - **File**: `backend/app/services/render_blender.py`
 - **What**: Add `render_cinematic_to_file()` function with same signature as `render_turntable_to_file()` but:
@@ -47,7 +47,7 @@ Add a new render type: a 20-second cinematic product highlight video with proced
 - **Acceptance gate**: Function callable, builds correct subprocess command
 - **Dependencies**: Task 1
 
-### [ ] Task 3: Pipeline integration
+### [x] Task 3: Pipeline integration
 
 - **File**: `backend/app/domains/pipeline/tasks/render_order_line.py`
 - **What**: In the render task, detect when output type has a cinematic flag. Add a check:
@@ -56,7 +56,7 @@ Add a new render type: a 20-second cinematic product highlight video with proced
 - **Acceptance gate**: Order line with cinematic output type renders via the new script
 - **Dependencies**: Task 2
 
-### [ ] Task 4: Output type + test
+### [x] Task 4: Output type + test
 
 - **What**: Create the "Cinematic Highlight" output type via API:
   ```json