Add quote and order HTTP APIs on manifest documents.

Expose store-backed CRUD for quotes and sales orders with shared ManifestLine shapes, entityId customers, and documented date semantics.

docs/api/routes/order/delete.md

@@ -0,0 +1,32 @@
+# `DELETE /order/{id}`
+
+Protected. Requires a valid session cookie (`credentials: 'include'`).
+
+Delete order
+
+Deletes the sales order (`manifestarticle` rows cascade).
+
+## Path parameters
+
+| Param | Required | Type | Description |
+|-------|----------|------|-------------|
+| `id` | yes | integer |  |
+
+## Response `204`
+
+Deleted
+
+_No content_
+
+## Errors
+
+| Status | Description |
+|--------|-------------|
+| 400 | No company selected or invalid id — `{"error":"…"}` |
+| 401 | Unauthorized — `{"error":"…"}` |
+| 403 | Not authorized — `{"error":"…"}` |
+| 404 | Order not found — `{"error":"…"}` |
+
+---
+
+_Generated from `@openapi` JSDoc. Do not edit by hand — run `npm run docs:api`._