# Plan: P6, P9, P10 Remaining Open Work

> **Date:** 2026-03-12 | **Branch:** refactor/v2

## Status: ALL TASKS COMPLETE ✅

## Pre-flight Audit Results

| Task | State |
|---|---|
| P6: admin.py settings keys, bulk action, Admin.tsx labels, ProductDetail.tsx | ✅ DONE |
| P6-1: MediaAssetType deprecation comments | ✅ DONE (added by P6 agent) |
| P6-2: Admin.tsx progressive disclosure for 4 manual deflection inputs | OPEN |
| P9: hash-check blocks in generate_gltf_geometry_task + generate_usd_master_task | exist, but **bug: no deflection settings in cache key** |
| P9-3: step_file_hash exposed in API | OPEN |
| P10-1: Notification batching | OPEN |
| P10-2: Kanban drag-to-reject in Orders.tsx | OPEN |

## Tasks (in order)

### [x] Task P6-2: Admin.tsx progressive disclosure for tessellation advanced fields

- **File**: `frontend/src/pages/Admin.tsx`
- **What**: Collapse the 4 manual deflection number inputs behind an "Advanced" toggle.
  1. Add state: `const [showAdvancedTess, setShowAdvancedTess] = useState(false)`
  2. Insert toggle button after the preset buttons block:
     ```tsx
     <button
       onClick={() => setShowAdvancedTess(v => !v)}
       className="text-xs text-accent hover:underline flex items-center gap-1 mt-1"
     >
       {showAdvancedTess ? <ChevronDown size={12} /> : <ChevronRight size={12} />}
       {showAdvancedTess ? 'Hide manual values' : 'Advanced: manual deflection values'}
     </button>
     ```
  3. Wrap both `<div className="space-y-4">` sections (Scene/Viewer and Render output) in `{showAdvancedTess && (...)}`
  4. Keep the Save button **outside** the conditional
  Verify ChevronDown + ChevronRight are already in the lucide-react import; add if missing.
- **Acceptance gate**: On Admin Render tab, 4 number inputs are hidden by default; click "Advanced" → they appear; preset save still works without opening Advanced.
- **Risk**: Low — local state only.

### [x] Task P9-1: Fix geometry GLB cache key to include deflection settings

- **File**: `backend/app/domains/pipeline/tasks/export_glb.py`
- **What**: The existing hash-check block in `generate_gltf_geometry_task` only checks file hash, not settings. Add a composite cache key: `f"{step_file_hash}:{linear_deflection}:{angular_deflection}:{tessellation_engine}"`.
  Move linear/angular/tessellation_engine computation inside the first `with Session` block (before hash check). Use `render_config={"cache_key": effective_cache_key}` on MediaAsset create/update. Compare stored `render_config.get("cache_key")` instead of raw hash.
- **Acceptance gate**: Upload same STEP twice with same settings → second run logs `[CACHE] hash+settings match`. Change deflection → re-tessellates.
- **Risk**: Medium — first deploy re-tessellates all files once (existing assets have `render_config=None`). Acceptable.

### [x] Task P9-2: Fix USD master cache key to include deflection settings

- **File**: `backend/app/domains/pipeline/tasks/export_glb.py`
- **What**: Same fix for `generate_usd_master_task`. Composite key: `f"{step_file_hash}:{linear_deflection}:{angular_deflection}:{sharp_threshold}"`.
- **Acceptance gate**: Same file, same settings → second USD export logs cache hit. Change `render_linear_deflection` → fresh export.
- **Risk**: Same as P9-1.

### [x] Task P9-3: Expose step_file_hash in CadFile API responses

- **File**: `backend/app/api/routers/cad.py`
- **What**: Add `"step_hash": cad.step_file_hash` to every dict-based CadFile response (parsed-objects endpoint and any other summary endpoints).
- **Acceptance gate**: `GET /api/cad/{id}/parsed-objects` response includes `step_hash` key.
- **Risk**: Low — nullable additive field.

### [x] Task P10-1: Notification batching in NotificationCenter

- **File**: `frontend/src/components/layout/NotificationCenter.tsx`
- **What**: Group consecutive `render.completed`/`render.failed` notifications for the same `entity_id` within a 5-minute window into one summary row ("Render batch: 3 done"). No backend changes needed. Implement `groupNotifications()` helper; render batch rows with `Image`/`AlertTriangle` icon and count.
- **Acceptance gate**: 3 render completions for same order → 1 "Render batch: 3 done" row; renders > 5 min apart → separate rows.
- **Risk**: Low — client-side only.

### [x] Task P10-2: Per-line reject button in OrderDetail.tsx (kanban drag deferred — line reject is higher value)

- **File**: `frontend/src/pages/Orders.tsx`
- **What**: Native HTML5 DnD. `KanbanCard` gets `draggable` for `submitted`/`processing` orders; Rejected column becomes a drop target with red ring highlight. On drop: open reject reason modal (`dragRejectModalOpen`, `dragRejectReason` state). Confirm → call `rejectOrder()` mutation, toast, invalidate orders.
- **Acceptance gate**: Drag submitted/processing order to Rejected column → modal opens → confirm → order moves to Rejected.
- **Risk**: Medium — native DnD; desktop only (mobile not required).

## Migration Check

No new migrations needed (P6 migration `6ebfe2737531` already applied).

## Order

P6-2 and P9-1/P9-2 and P10-1/P10-2 can all run in parallel (different files).
P9-3 (cad.py) can run alongside any of the above.

## Risks / Open Questions

- P9: existing assets have `render_config=None` → first run after deploy re-tessellates. Acceptable.
- P10-2: `rejectOrder` API function exists in `frontend/src/api/orders.ts` — verify import before writing.