Bugfix/Missing Reasoning Item (#6237)

* - pass langchain message instance as a whole to avoid missing reasoning item
- add `normalizeMessagesForStorage` function to convert LangChain message instances into plain JSON objects, improving database storage efficiency and UI readability

* - Fix ChatflowConfigurationDialog for inconsistent behaviour
- Added a button in NodeExecutionDetails to toggle visibility of all available tools, improving user experience.

* display input data for tool node in execution