Add `SetTellPositionRequest` schema and minor cleanup.

Added a new `SetTellPositionRequest` schema in `schemas.py` to support bulk updates of TELL positions. Commented out redundant metadata operations in `main.py` and cleaned up unused content in the test notebook for better readability.

backend/app/models.py

@@ -208,6 +208,7 @@ class PuckEvent(Base):
 
     id = Column(Integer, primary_key=True, index=True)
     puck_id = Column(Integer, ForeignKey("pucks.id"))
+    tell = Column(String(255), nullable=True)
     tell_position = Column(String(255), nullable=True)
     event_type = Column(String(255), index=True)
     timestamp = Column(DateTime, default=datetime.now)

backend/app/schemas.py

-from typing import List, Optional
+from typing import List, Optional, ClassVar
 from datetime import datetime
 from pydantic import BaseModel, EmailStr, constr, Field, field_validator
 from datetime import date
@@ -668,6 +668,13 @@ class SetTellPosition(BaseModel):
         return None
 
 
+class SetTellPositionRequest(BaseModel):
+    tell: str
+    pucks: List[SetTellPosition]
+
+    from_attributes: ClassVar[bool] = True
+
+
 class PuckWithTellPosition(BaseModel):
     id: int
     puck_name: str