fix

backend/app/schemas/__init__.py

@@ -16,7 +16,8 @@ class UserRegister(BaseModel):
 
 
 class UserLogin(BaseModel):
-    email: EmailStr
+    # Accepts either email or username — the backend resolves it.
+    login: str
     password: str
 
 
@@ -72,7 +73,7 @@ class PresetCreate(BaseModel):
     slug: str
     title: str
     description: Optional[str] = None
-    language: str = "ru"
+    language: str = "en"
     is_public: bool = True
     payload: Dict[str, Any]
 
@@ -80,7 +81,7 @@ class PresetCreate(BaseModel):
 # === Worlds ===
 class WorldCreate(BaseModel):
     name: str = Field(min_length=1, max_length=255)
-    language: str = "ru"
+    language: str = "en"
     preset_id: Optional[UUID] = None
 
 
@@ -120,7 +121,7 @@ class WorldUpdate(BaseModel):
 class WorldBuilderStart(BaseModel):
     """Kick off a new world-building conversation."""
     world_name: str = Field(min_length=1, max_length=255)
-    language: str = "ru"
+    language: str = "en"
     # Either pick a preset to start from, or fill the freeform brief.
     preset_id: Optional[UUID] = None
     setting_brief: str = ""