fix+feat(everything): lot of things

backend/schemas/event.py

@@ -14,6 +14,8 @@ class EventBase(BaseModel):
 
 class EventCreate(EventBase):
     cover_image: Optional[str] = None
+    is_private: bool = False
+    invited_user_ids: Optional[List[int]] = None  # Liste des IDs des utilisateurs invités (pour événements privés)
 
 class EventUpdate(BaseModel):
     title: Optional[str] = Field(None, min_length=1, max_length=200)
@@ -24,6 +26,7 @@ class EventUpdate(BaseModel):
     date: Optional[datetime] = None
     end_date: Optional[datetime] = None
     cover_image: Optional[str] = None
+    is_private: Optional[bool] = None
 
 class ParticipationResponse(BaseModel):
     user_id: int
@@ -42,6 +45,7 @@ class EventResponse(EventBase):
     creator_name: str
     creator_avatar: Optional[str] = None
     cover_image: Optional[str]
+    is_private: bool = False
     created_at: datetime
     participations: List[ParticipationResponse] = []
     present_count: int = 0