add parts data

api/prisma/schema.prisma

@@ -16,3 +16,14 @@ model Post {
   body      String
   createdAt DateTime @default(now())
 }
+
+model Part {
+  id          Int      @id @default(autoincrement())
+  title       String
+  description String // markdown string
+  code        String   @default("// Welcome to Cascade Studio!   Here are some useful functions:\n//  Translate(), Rotate(), Scale(), Union(), Difference(), Intersection()\n//  Box(), Sphere(), Cylinder(), Cone(), Text3D(), Polygon()\n//  Offset(), Extrude(), RotatedExtrude(), Revolve(), Pipe(), Loft(),\n//  FilletEdges(), ChamferEdges(),\n//  Slider(), Button(), Checkbox()\nlet holeRadius = Slider(\"Radius\", 30 , 20 , 40);\nlet sphere     = Sphere(50);\nlet cylinderZ  =                     Cylinder(holeRadius, 200, true);\nlet cylinderY  = Rotate([0,1,0], 90, Cylinder(holeRadius, 200, true));\nlet cylinderX  = Rotate([1,0,0], 90, Cylinder(holeRadius, 200, true));\nTranslate([0, 0, 50], Difference(sphere, [cylinderX, cylinderY, cylinderZ]));\n\nTranslate([-25, 0, 40], Text3D(\"Hi!\"));\n// Don't forget to push imported or oc-defined shapes into sceneShapes to add them to the workspace!")
+  mainImage   String // link to cloudinary
+  createdAt   DateTime @default(now())
+  // userId
+  //likes, comments, reactions
+}