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()

domain/subtitles/value_objects.py

@@ -1,4 +1,5 @@
 """Subtitle domain value objects."""
+
 from dataclasses import dataclass
 from enum import Enum
 
@@ -7,29 +8,21 @@ from ..shared.exceptions import ValidationError
 
 class Language(Enum):
     """Supported subtitle languages."""
+
     ENGLISH = "en"
     FRENCH = "fr"
-    SPANISH = "es"
-    GERMAN = "de"
-    ITALIAN = "it"
-    PORTUGUESE = "pt"
-    RUSSIAN = "ru"
-    JAPANESE = "ja"
-    KOREAN = "ko"
-    CHINESE = "zh"
-    ARABIC = "ar"
-    
+
     @classmethod
     def from_code(cls, code: str) -> "Language":
         """
         Get language from ISO 639-1 code.
-        
+
         Args:
             code: Two-letter language code
-        
+
         Returns:
             Language enum value
-        
+
         Raises:
             ValidationError: If code is not supported
         """
@@ -42,27 +35,28 @@ class Language(Enum):
 
 class SubtitleFormat(Enum):
     """Supported subtitle formats."""
+
     SRT = "srt"  # SubRip
     ASS = "ass"  # Advanced SubStation Alpha
     SSA = "ssa"  # SubStation Alpha
     VTT = "vtt"  # WebVTT
     SUB = "sub"  # MicroDVD
-    
+
     @classmethod
     def from_extension(cls, extension: str) -> "SubtitleFormat":
         """
         Get format from file extension.
-        
+
         Args:
             extension: File extension (with or without dot)
-        
+
         Returns:
             SubtitleFormat enum value
-        
+
         Raises:
             ValidationError: If extension is not supported
         """
-        ext = extension.lower().lstrip('.')
+        ext = extension.lower().lstrip(".")
         for fmt in cls:
             if fmt.value == ext:
                 return fmt
@@ -73,22 +67,25 @@ class SubtitleFormat(Enum):
 class TimingOffset:
     """
     Value object representing subtitle timing offset in milliseconds.
-    
+
     Used for synchronizing subtitles with video.
     """
+
     milliseconds: int
-    
+
     def __post_init__(self):
         """Validate timing offset."""
         if not isinstance(self.milliseconds, int):
-            raise ValidationError(f"Timing offset must be an integer, got {type(self.milliseconds)}")
-    
+            raise ValidationError(
+                f"Timing offset must be an integer, got {type(self.milliseconds)}"
+            )
+
     def to_seconds(self) -> float:
         """Convert to seconds."""
         return self.milliseconds / 1000.0
-    
+
     def __str__(self) -> str:
         return f"{self.milliseconds}ms"
-    
+
     def __repr__(self) -> str:
         return f"TimingOffset({self.milliseconds})"