feat: add started_at/completed_at columns to notes

src/fabledassistant/models/note.py

@@ -1,7 +1,7 @@
 import enum
-from datetime import date
+from datetime import date, datetime
 
-from sqlalchemy import Date, ForeignKey, Index, Integer, Text
+from sqlalchemy import Date, DateTime, ForeignKey, Index, Integer, Text
 from sqlalchemy.dialects.postgresql import ARRAY
 from sqlalchemy.orm import Mapped, mapped_column
 
@@ -45,6 +45,8 @@ class Note(Base, TimestampMixin):
     status: Mapped[str | None] = mapped_column(Text, nullable=True)
     priority: Mapped[str | None] = mapped_column(Text, nullable=True)
     due_date: Mapped[date | None] = mapped_column(Date, nullable=True)
+    started_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    completed_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
 
     __table_args__ = (
         Index("ix_notes_tags", "tags", postgresql_using="gin"),
@@ -71,6 +73,8 @@ class Note(Base, TimestampMixin):
             "status": self.status,
             "priority": self.priority,
             "due_date": self.due_date.isoformat() if self.due_date else None,
+            "started_at": self.started_at.isoformat() if self.started_at else None,
+            "completed_at": self.completed_at.isoformat() if self.completed_at else None,
             "is_task": self.is_task,
             "created_at": self.created_at.isoformat(),
             "updated_at": self.updated_at.isoformat(),