Now I have the full picture. The user wants to combine both versions:

Previous version: Pre-loaded sample products with navigator (arrows to browse), pre-set product thumbnails Current version: Upload custom image, prompt input, generate, download

I'll merge them so the image source section offers two tabs: "Sample Products" (browse pre-loaded) and "Upload" (custom image). Everything else (zones, materials, prompt, generate, download) stays. Let me rewrite the affected components.

Now update the MaterialComposer to work with the merged version (pass selectedProduct, initialize from sample on load):

Now let me verify everything compiles by checking for any stale imports:

Clean. The product-navigator.tsx file exists but isn't imported anywhere (harmless). Let me do a final check that the page renders correctly:

Everything is wired up correctly. The two versions are now merged into one unified experience.

이전 버전(샘플 제품 탐색)과 현재 버전(업로드/프롬프트/다운로드)을 하나로 합쳤습니다. 이미지 소스 영역에 "샘플 제품" / "직접 업로드" 두 개 탭이 있어서, 샘플 탭에서는 화살표와 썸네일로 기존 등산배낭/스니커즈/토트백 제품을 탐색할 수 있고, 업로드 탭에서는 직접 이미지를 드래그 앤 드롭으로 올릴 수 있습니다. 이미지가 선택되면 아래에 적용 부위(동적 추가/삭제), 소재 라이브러리, 합성 프롬프트 입력이 순서대로 나타나며, 오른쪽 미리보기에서 생성 결과 확인과 다운로드가 가능합니다.

Now I have a full understanding of the current architecture. Here's my plan:

1. ImageUploader - Remove sample product tab, make it upload-only for a single product image
2. MaterialComposer - Move prompt, change log, and reset button from left sidebar to the right side (below the preview). Left sidebar = image upload + zones + materials only. Right side = preview on top + prompt/changelog/reset on bottom.
3. ProductViewer - Simplified since prompt/download controls will be handled at the composer level now

Let me implement these changes:

Now rewrite the ProductViewer - just the image display (no prompt/download, those move to parent):

Now rewrite the main MaterialComposer with the new layout: left sidebar (upload + zones + materials), right side split into top (preview) and bottom (prompt + changelog + reset + download):

Now clean up unused files - the product-navigator is no longer needed:

Also clean up the product-data.ts since we no longer need sample products or the Product type:

Now verify there are no stale references to products or Product type:

All clean - no stale references. Let me also verify the PromptInput still renders properly as it's now in the right-side bottom panel:

The PromptInput works perfectly in its new location. The layout is now: left sidebar has image upload, zone panel, and material grid; right side top has the preview viewer; right side bottom has the prompt input, change log, reset button, and download button.

요청대로 세 가지를 변경했습니다. 샘플 제품 탭을 제거하고 단일 이미지 직접 업로드 방식으로 단순화했고, 합성 프롬프트/변경사항/초기화/다운로드 버튼을 오른쪽 하단 패널로 이동시켰습니다. 왼쪽 사이드바에는 이미지 업로드, 적용 부위, 소재 라이브러리만 배치하여 편집 도구와 결과 확인 영역이 명확히 분리되었습니다.