Clean up the agent instructions

[dpoulopoulos]

We should consider cleaning up the agent instructions as some bits seems irrelevant or outdated:

A few issues:

• Do we want to use TinyAgent as the default framework for the generated agent (Replace default framework to be tinyagent instead of openai #251)? This means that we should update the:
  • Code example
  • Code template
  • The line that instructs the manufacturing agent to use the openai framework.
• Is the line that instructs the manufacturing agent to use the openai framework relevant? I guess not, since this part is fixed in code and not something that the agent can influence. We should remove it completely.
• Do we need the instructions to save the agent trace?
• This part is not needed. The part that uses the dotenv library to load the environment variables is fixed in code.