gracefully skip R2 upload when SCONFIG not set

app.py

@@ -1434,23 +1434,26 @@ def generate_and_upload(
         "seed": int(used),
         "uid": uid,
     }
-    result = r2_uploader.upload_asset(
-        namespace=R2_NAMESPACE,
-        prompt=effective_prompt,
-        params=params,
-        data=buf.getvalue(),
-        ext=".webp",
-        content_type="image/webp",
-        uid=uid,
-    )
-    if result.get("ok"):
-        status = {
-            "r2_filekey": result["filekey"],
-            "r2_bucket": result["bucket"],
-            "r2_url": r2_uploader.presign_get_url(result["filekey"], result["bucket"]),
-        }
-    else:
-        status = {"r2_error": result.get("error", "unknown error")}
+    try:
+        result = r2_uploader.upload_asset(
+            namespace=R2_NAMESPACE,
+            prompt=effective_prompt,
+            params=params,
+            data=buf.getvalue(),
+            ext=".webp",
+            content_type="image/webp",
+            uid=uid,
+        )
+        if result.get("ok"):
+            status = {
+                "r2_filekey": result["filekey"],
+                "r2_bucket": result["bucket"],
+                "r2_url": r2_uploader.presign_get_url(result["filekey"], result["bucket"]),
+            }
+        else:
+            status = {"r2_error": result.get("error", "unknown error")}
+    except Exception:
+        status = {"r2_error": "SCONFIG not set  R2 upload skipped"}
     status["moderation"] = moderation
     yield image, used, status, _progress("done", 1.0, label="Done")
 
@@ -1617,16 +1620,19 @@ def prompt_to_video_assets(
         "source": "prompt_to_video_assets",
         "original_input": original_input,
     }
-    up = r2_uploader.upload_asset(
-        namespace=R2_NAMESPACE, prompt=frame_prompt, params=params,
-        data=buf.getvalue(), ext=".webp", content_type="image/webp", uid=uid,
-    )
-    if up.get("ok"):
-        state["r2_filekey"] = up["filekey"]
-        state["r2_bucket"] = up["bucket"]
-        state["first_frame_url"] = r2_uploader.presign_get_url(up["filekey"], up["bucket"])
-    else:
-        state["error"] = up.get("error", "R2 upload failed")
+    try:
+        up = r2_uploader.upload_asset(
+            namespace=R2_NAMESPACE, prompt=frame_prompt, params=params,
+            data=buf.getvalue(), ext=".webp", content_type="image/webp", uid=uid,
+        )
+        if up.get("ok"):
+            state["r2_filekey"] = up["filekey"]
+            state["r2_bucket"] = up["bucket"]
+            state["first_frame_url"] = r2_uploader.presign_get_url(up["filekey"], up["bucket"])
+        else:
+            state["error"] = up.get("error", "R2 upload failed")
+    except Exception:
+        state["error"] = "SCONFIG not set  R2 upload skipped"
 
     # --- Stage 4: LLM writes the video prompt (grounded on the frame) ---------
     base += _P2V_W_UPLOAD