diff --git a/.DS_Store b/.DS_Store
index 151d1a5..e7c4193 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/backend/uploads/designs/26.png b/backend/uploads/designs/26.png
deleted file mode 100644
index e164375..0000000
Binary files a/backend/uploads/designs/26.png and /dev/null differ
diff --git a/backend/uvicorn.log b/backend/uvicorn.log
index bb40617..844bbcc 100644
--- a/backend/uvicorn.log
+++ b/backend/uvicorn.log
@@ -80,3 +80,143 @@ INFO:     Waiting for application startup.
 INFO:     Application startup complete.
 ✅ 上传目录已准备: uploads
 INFO:     127.0.0.1:64149 - "GET /uploads/videos/6ed3f33421a44876b303c7671c1597d5.mp4 HTTP/1.1" 304 Not Modified
+WARNING:  StatReload detected changes in 'app/services/design_service.py'. Reloading...
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+INFO:     Application shutdown complete.
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+👋 应用已关闭
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+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/design_service.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [69988]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
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+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/design_service.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [69995]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
+INFO:     Started server process [70000]
+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/ai_3d_generator.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [70000]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
+INFO:     Started server process [71187]
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+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/ai_video_generator_kling.py'. Reloading...
+INFO:     Shutting down
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+INFO:     Application shutdown complete.
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+👋 应用已关闭
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+WARNING:  StatReload detected changes in 'app/services/ai_3d_generator.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [71203]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
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+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+✅ 上传目录已准备: uploads
+INFO:     127.0.0.1:52861 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:52869 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:52871 - "GET /api/designs/27 HTTP/1.1" 200 OK
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+INFO:     127.0.0.1:52951 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:52953 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53198 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53206 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53208 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53211 - "GET /uploads/videos/6ed3f33421a44876b303c7671c1597d5.mp4 HTTP/1.1" 304 Not Modified
+INFO:     127.0.0.1:53280 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53288 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53290 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53426 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53434 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53436 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53602 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53611 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53613 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:53616 - "GET /uploads/videos/6ed3f33421a44876b303c7671c1597d5.mp4 HTTP/1.1" 304 Not Modified
+INFO:     127.0.0.1:55190 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:55199 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:55201 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:55204 - "GET /uploads/videos/6ed3f33421a44876b303c7671c1597d5.mp4 HTTP/1.1" 304 Not Modified
+INFO:     127.0.0.1:55234 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:55241 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:55243 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56832 - "GET /uploads/models/506909359d6c45fe9e43108ee7765a9a.glb HTTP/1.1" 304 Not Modified
+INFO:     127.0.0.1:56840 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56846 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56849 - "GET /api/designs/27 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56856 - "GET /api/designs?page=1&page_size=20 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56859 - "GET /uploads/designs/26.png HTTP/1.1" 304 Not Modified
+INFO:     127.0.0.1:56865 - "DELETE /api/designs/26 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56868 - "GET /api/designs?page=1&page_size=20 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56902 - "GET /api/designs/24 HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56925 - "GET /api/categories HTTP/1.1" 200 OK
+INFO:     127.0.0.1:56927 - "GET /api/designs?page=1&page_size=20 HTTP/1.1" 200 OK
+WARNING:  StatReload detected changes in 'app/services/design_service.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [71899]
+👋 应用已关闭
+INFO:     Started server process [75417]
+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/prompt_builder.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [75417]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
+INFO:     Started server process [76192]
+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+WARNING:  StatReload detected changes in 'app/services/design_service.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [76192]
+✅ 上传目录已准备: uploads
+👋 应用已关闭
+INFO:     Started server process [76199]
+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
+✅ 上传目录已准备: uploads
+INFO:     127.0.0.1:63820 - "GET /api/auth/me HTTP/1.1" 200 OK
+INFO:     127.0.0.1:63827 - "GET /api/designs?page=1&page_size=20 HTTP/1.1" 200 OK
+WARNING:  StatReload detected changes in 'app/services/prompt_builder.py'. Reloading...
+INFO:     Shutting down
+INFO:     Waiting for application shutdown.
+INFO:     Application shutdown complete.
+INFO:     Finished server process [76199]
+👋 应用已关闭
+INFO:     Started server process [83069]
+INFO:     Waiting for application startup.
+INFO:     Application startup complete.
diff --git a/init_data.sql.zip b/init_data.sql.zip
index cf284e5..af8fa7b 100644
Binary files a/init_data.sql.zip and b/init_data.sql.zip differ