fix(toolbox-core): Prevent rebinding of parameters in ToolboxTool

This pull request updates the `bind_parameters` helper function within the `ToolboxTool` of the `toolbox-core` package to enhance parameter binding management.

* The helper now throws an explicit error if a user attempts to bind a parameter that has already been bound. This change aims to prevent unexpected behavior and improve the clarity of parameter assignments.
* The error that previously occurred when a user tried to bind a parameter not present in the tool's schema has been removed. This validation will be handled by a `strict` mode implementation in a future PR.

Author: anubhav756

packages/toolbox-core/src/toolbox_core/tool.py

@@ -286,10 +286,11 @@ def bind_parameters(
          Returns:
              A new ToolboxTool instance with the specified parameters bound.
         """
-        param_names = set(p.name for p in self.__params)
         for name in bound_params.keys():
-            if name not in param_names:
-                raise Exception(f"unable to bind parameters: no parameter named {name}")
+            if name in self.__bound_parameters:
+                raise ValueError(
+                    f"cannot re-bind parameter: parameter '{name}' is already bound"
+                )
 
         new_params = []
         for p in self.__params: