feat!: migrate to OpenAI native tool calls and fix circular deps (#fuck-gemini)

- Fix circular dependencies in agent/tools
- Migrate from custom JSON to OpenAI tool calls format
- Add async streaming (step_stream, complete_stream)
- Simplify prompt system and remove token counting
- Add 5 new API endpoints (/health, /v1/models, /api/memory/*)
- Add 3 new tools (get_torrent_by_index, add_torrent_by_index, set_language)
- Fix all 500 tests and add coverage config (80% threshold)
- Add comprehensive docs (README, pytest guide)

BREAKING: LLM interface changed, memory injection via get_memory()

agent/tools/filesystem.py

@@ -1,59 +1,40 @@
-"""Filesystem tools - Adapted for DDD architecture."""
-from typing import Dict, Any
+"""Filesystem tools for folder management."""
 
-# Import use cases
-from application.filesystem import SetFolderPathUseCase, ListFolderUseCase
+from typing import Any
 
-# Import infrastructure
+from application.filesystem import ListFolderUseCase, SetFolderPathUseCase
 from infrastructure.filesystem import FileManager
-from infrastructure.persistence.memory import Memory
 
 
-def set_path_for_folder(memory: Memory, folder_name: str, path_value: str) -> Dict[str, Any]:
+def set_path_for_folder(folder_name: str, path_value: str) -> dict[str, Any]:
     """
-    Set a path in the configuration.
+    Set a folder path in the configuration.
 
     Args:
-        memory: Memory instance to store the configuration
-        folder_name: Name of folder to set (download, tvshow, movie, torrent)
-        path_value: Absolute path to the folder
+        folder_name: Name of folder to set (download, tvshow, movie, torrent).
+        path_value: Absolute path to the folder.
 
     Returns:
-        Dict with status or error information
+        Dict with status or error information.
     """
-    # Create file manager
-    file_manager = FileManager(memory)
-    
-    # Create use case
+    file_manager = FileManager()
     use_case = SetFolderPathUseCase(file_manager)
-    
-    # Execute use case
     response = use_case.execute(folder_name, path_value)
-    
-    # Return as dict
     return response.to_dict()
 
 
-def list_folder(memory: Memory, folder_type: str, path: str = ".") -> Dict[str, Any]:
+def list_folder(folder_type: str, path: str = ".") -> dict[str, Any]:
     """
-    List contents of a folder.
+    List contents of a configured folder.
 
     Args:
-        memory: Memory instance to retrieve the configuration
-        folder_type: Type of folder to list (download, tvshow, movie, torrent)
-        path: Relative path within the folder (default: ".")
+        folder_type: Type of folder to list (download, tvshow, movie, torrent).
+        path: Relative path within the folder (default: root).
 
     Returns:
-        Dict with folder contents or error information
+        Dict with folder contents or error information.
     """
-    # Create file manager
-    file_manager = FileManager(memory)
-    
-    # Create use case
+    file_manager = FileManager()
     use_case = ListFolderUseCase(file_manager)
-    
-    # Execute use case
     response = use_case.execute(folder_type, path)
-    
-    # Return as dict
     return response.to_dict()