Fix recipe upload to accept file uploads instead of JSON

The CLI client sends multipart file uploads but the server expected JSON.
Changed the /recipes/upload endpoint to accept UploadFile and return
the additional fields (name, version, variable_inputs, fixed_inputs)
that the client expects.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/routers/recipes.py

@@ -39,22 +39,55 @@ def get_recipe_service():
 
 @router.post("/upload")
 async def upload_recipe(
-    req: RecipeUploadRequest,
+    file: UploadFile = File(...),
     ctx: UserContext = Depends(require_auth),
     recipe_service: RecipeService = Depends(get_recipe_service),
 ):
-    """Upload a new recipe from YAML."""
+    """Upload a new recipe from YAML file."""
+    import yaml
+
+    # Read the YAML content from the uploaded file
+    yaml_content = (await file.read()).decode("utf-8")
+
+    # Parse YAML to extract recipe info for response
+    try:
+        recipe_data = yaml.safe_load(yaml_content)
+    except yaml.YAMLError as e:
+        raise HTTPException(400, f"Invalid YAML: {e}")
+
+    # Use filename (without extension) as recipe name if not in YAML
+    recipe_name = recipe_data.get("name")
+    if not recipe_name and file.filename:
+        recipe_name = file.filename.rsplit(".", 1)[0]
+
     recipe_id, error = await recipe_service.upload_recipe(
-        yaml_content=req.yaml_content,
+        yaml_content=yaml_content,
         uploader=ctx.actor_id,
-        name=req.name,
-        description=req.description,
+        name=recipe_name,
+        description=recipe_data.get("description"),
     )
 
     if error:
         raise HTTPException(400, error)
 
-    return {"recipe_id": recipe_id, "message": "Recipe uploaded successfully"}
+    # Extract input info for response
+    inputs = recipe_data.get("inputs", {})
+    variable_inputs = []
+    fixed_inputs = []
+    for input_name, input_def in inputs.items():
+        if isinstance(input_def, dict) and input_def.get("fixed"):
+            fixed_inputs.append(input_name)
+        else:
+            variable_inputs.append(input_name)
+
+    return {
+        "recipe_id": recipe_id,
+        "name": recipe_name or "unnamed",
+        "version": recipe_data.get("version", "1.0"),
+        "variable_inputs": variable_inputs,
+        "fixed_inputs": fixed_inputs,
+        "message": "Recipe uploaded successfully",
+    }
 
 
 @router.get("")