chore: snapshot workflow migration progress

backend/app/api/routers/orders.py

@@ -30,6 +30,7 @@ from app.schemas.order_line import OrderLineCreate, OrderLineOut
 from app.schemas.product import ProductOut
 from app.schemas.output_type import OutputTypeOut
 from app.services.order_service import generate_order_number
+from app.core.render_paths import resolve_result_path, result_path_to_public_url
 from app.utils.auth import get_current_user, require_admin_or_pm, require_pm_or_above
 
 router = APIRouter(prefix="/orders", tags=["orders"])
@@ -41,13 +42,7 @@ def _is_privileged(user: User) -> bool:
 
 def _result_path_to_url(result_path: str) -> str | None:
     """Convert an internal result_path to a servable static URL."""
-    if "/renders/" in result_path:
-        idx = result_path.index("/renders/")
-        return result_path[idx:]
-    if "/thumbnails/" in result_path:
-        idx = result_path.index("/thumbnails/")
-        return result_path[idx:]
-    return None
+    return result_path_to_public_url(result_path, require_exists=True)
 
 
 def _build_line_out(line: OrderLine) -> OrderLineOut:
@@ -1544,15 +1539,6 @@ async def download_renders(
     if not lines:
         raise HTTPException(404, detail="No completed renders found for this order")
 
-    from app.config import settings as app_settings
-
-    def _resolve_path(p: str) -> str:
-        """Translate container-relative paths to backend filesystem paths."""
-        # Flamenco worker mounts the uploads volume at /shared, backend at /app/uploads
-        if p.startswith("/shared/"):
-            return app_settings.upload_dir + p[len("/shared"):]
-        return p
-
     buf = io.BytesIO()
     # Track names used to avoid duplicates
     name_counts: dict[str, int] = {}
@@ -1561,8 +1547,8 @@ async def download_renders(
         for line in lines:
             if not line.result_path:
                 continue
-            fs_path = _resolve_path(line.result_path)
-            if not os.path.isfile(fs_path):
+            resolved_path = resolve_result_path(line.result_path)
+            if resolved_path is None or not resolved_path.is_file():
                 continue
             # Build a meaningful filename
             product_name = (line.product.name or line.product.pim_id or "product") if line.product else "product"
@@ -1587,7 +1573,7 @@ async def download_renders(
                 name_counts[base_name] = 0
                 archive_name = base_name
 
-            zf.write(fs_path, archive_name)
+            zf.write(resolved_path, archive_name)
 
     if not zf.infolist():
         raise HTTPException(404, detail="No render files found on disk")