Fix prop confirmation bug, add Wan 2.7 model, refine multiple UI details, improve prop generation quality and aspect ratio, remove text overlays from Asset Center created images, and optimize prop filtering logic

src/app/api/asset-hub/ai-modify-prop/route.ts

@@ -0,0 +1,58 @@
+import { NextRequest } from 'next/server'
+import { prisma } from '@/lib/prisma'
+import { requireUserAuth, isErrorResponse } from '@/lib/api-auth'
+import { apiHandler, ApiError } from '@/lib/api-errors'
+import { TASK_TYPE } from '@/lib/task/types'
+import { maybeSubmitLLMTask } from '@/lib/llm-observe/route-task'
+
+export const POST = apiHandler(async (request: NextRequest) => {
+  const authResult = await requireUserAuth()
+  if (isErrorResponse(authResult)) return authResult
+  const { session } = authResult
+
+  const payload = await request.json().catch(() => ({}))
+  const propId = typeof payload?.propId === 'string' ? payload.propId.trim() : ''
+  const variantId = typeof payload?.variantId === 'string' ? payload.variantId.trim() : ''
+  const currentDescription = typeof payload?.currentDescription === 'string' ? payload.currentDescription.trim() : ''
+  const modifyInstruction = typeof payload?.modifyInstruction === 'string' ? payload.modifyInstruction.trim() : ''
+
+  if (!propId || !currentDescription || !modifyInstruction) {
+    throw new ApiError('INVALID_PARAMS')
+  }
+
+  const prop = await prisma.globalLocation.findFirst({
+    where: {
+      id: propId,
+      userId: session.user.id,
+      assetKind: 'prop',
+    },
+    select: {
+      id: true,
+      name: true,
+    },
+  })
+  if (!prop) {
+    throw new ApiError('NOT_FOUND')
+  }
+
+  const asyncTaskResponse = await maybeSubmitLLMTask({
+    request,
+    userId: session.user.id,
+    projectId: 'global-asset-hub',
+    type: TASK_TYPE.ASSET_HUB_AI_MODIFY_PROP,
+    targetType: 'GlobalLocation',
+    targetId: variantId || propId,
+    routePath: '/api/asset-hub/ai-modify-prop',
+    body: {
+      propId,
+      propName: prop.name,
+      variantId: variantId || undefined,
+      currentDescription,
+      modifyInstruction,
+    },
+    dedupeKey: `asset_hub_ai_modify_prop:${propId}:${variantId || 'default'}`,
+  })
+  if (asyncTaskResponse) return asyncTaskResponse
+
+  throw new ApiError('INVALID_PARAMS')
+})