Infer ArtStation categories from Blender/sculpt tools

Stop defaulting imports to CAD; map Blender to 3D Modeling and
sculpt tools (Nomad/ZBrush) to 3D Sculpting.

server/src/routes/admin-meta.ts

@@ -306,7 +306,6 @@ export async function adminMetaRoutes(app: FastifyInstance) {
       dryRun: body.dryRun,
       publish: body.publish,
       url: body.url,
-      defaultCad: true,
     });
 
     if (!started) {

server/src/services/artstation-import.ts

@@ -44,8 +44,6 @@ export interface ImportOptions {
   dryRun?: boolean;
   /** Publish new imports instead of leaving as draft */
   publish?: boolean;
-  /** Assign CAD when no category matched */
-  defaultCad?: boolean;
   onLog?: (line: string) => void;
 }
 
@@ -238,9 +236,25 @@ async function importProject(
   const tags = detail.tags || [];
   let categoryIds = await resolveCategoryIds([...mediums, ...cats]);
 
-  if (categoryIds.length === 0 && opts.defaultCad !== false) {
-    const cad = await prisma.category.findUnique({ where: { slug: "cad" } });
-    if (cad) categoryIds = [cad.id];
+  // Infer from software / description when ArtStation has no useful medium tags
+  if (categoryIds.length === 0) {
+    const hay = `${software.join(" ")} ${detail.title} ${detail.description || ""}`.toLowerCase();
+    let slug: string | null = null;
+    if (
+      hay.includes("nomad sculpt") ||
+      hay.includes("zbrush") ||
+      (detail.title.toLowerCase().includes("mogwai") && hay.includes("sculpt"))
+    ) {
+      slug = "3d-sculpting";
+    } else if (hay.includes("blender") || hay.includes("maya") || hay.includes("3d model")) {
+      slug = "3d-modeling";
+    } else if (hay.includes("solidworks") || hay.includes("fusion 360") || /\bcad\b/.test(hay)) {
+      slug = "cad";
+    }
+    if (slug) {
+      const cat = await prisma.category.findUnique({ where: { slug } });
+      if (cat) categoryIds = [cat.id];
+    }
   }
 
   log(