feat: Add dynamic user profile agent

[zhjuzi]

feat: Add dynamic user profile agent

• Add user profile agent module with PreferenceAgent class for behavioral analysis
• Implement structured user profile types with Pydantic models (ProfileSummary, Preferences, CommunityProfile)
• Define comprehensive enums for interests, interaction styles, content styles, behavioral archetypes, and community roles
• Integrate dynamic user profile updates into OasisEnv with automatic collection and analysis
• Add comprehensive unit tests covering agent functionality, data models, and enum validation

Key Features:

• Real-time user behavior analysis and profile generation
• Structured profile data with validation and type safety
• Configurable profile update intervals and file storage
• Support for incremental profile updates based on user actions
• Robust error handling and fallback mechanisms

Files Modified:

• oasis/environment/env.py: Add user profile update functionality
• oasis/social_agent/agent.py: Remove max_iteration

Files Added:

• oasis/user_profile_agent/: Complete user profile agent module
• test/agent/test_user_profile_agent.py: Comprehensive unit tests

Closes #95

[zhangzaibin]

Hi! @zhjuzi Can you provide a example code in the examples to show how your added feature works?

[zhangzaibin]

I pull this branch locally. This part can not be imported.

[zhjuzi]

sorry！I actually missed this file 😭

[zhjuzi]

add profile agent demo in examples/preference_agent_demo.py