Enhance simulation functionality and frontend components for improved user experience

- Updated the simulation API to include a new 'force' parameter, allowing users to restart simulations while cleaning up previous logs.
- Enhanced the simulation status detail retrieval to include all actions and platform-specific actions for better monitoring.
- Introduced a new SimulationRunView component to manage the simulation process, providing a clear interface for users to start and monitor simulations.
- Improved the Step3Simulation component with detailed logging and progress indicators, ensuring users receive real-time updates during the simulation.
- Added new API endpoints for retrieving simulation posts and actions, enhancing the overall functionality and user engagement.

backend/app/services/oasis_profile_generator.py

@@ -61,7 +61,7 @@ class OasisAgentProfile:
         """转换为Reddit平台格式"""
         profile = {
             "user_id": self.user_id,
-            "user_name": self.user_name,
+            "username": self.user_name,  # OASIS 库要求字段名为 username（无下划线）
             "name": self.name,
             "bio": self.bio,
             "persona": self.persona,
@@ -89,7 +89,7 @@ class OasisAgentProfile:
         """转换为Twitter平台格式"""
         profile = {
             "user_id": self.user_id,
-            "user_name": self.user_name,
+            "username": self.user_name,  # OASIS 库要求字段名为 username（无下划线）
             "name": self.name,
             "bio": self.bio,
             "persona": self.persona,