feat: Implement base framework adapter interface

[Robbe1991]

Description

Implement abstract base class for framework adapters (LangChain, AutoGen, CrewAI).

Acceptance Criteria

• FrameworkAdapter ABC in src/agentgym/integrations/base.py
• Abstract methods for conversion, tool extraction, environment creation
• Type hints and docstrings
• Documentation of adapter interface

Technical Details

from abc import ABC, abstractmethod
from typing import Any, List

class FrameworkAdapter(ABC):
    """Base adapter for framework integrations."""

    @abstractmethod
    def wrap_agent(self, trained_model) -> Any:
        """Wrap trained model for framework."""
        pass

    @abstractmethod
    def extract_tools(self, agent) -> List:
        """Extract tools from framework agent."""
        pass

    @abstractmethod
    def create_environment(self, agent):
        """Create training environment from agent."""
        pass

Estimated Time

2-3 hours