Fix: Handle 'user_agent' data truncation error

migrations/versions/5b76689f6e4b_increase_the_length_limit_of_the_user_.py

@@ -0,0 +1,40 @@
+"""Increase the length limit of the user_agent field in the login_sessions table
+
+Revision ID: 5b76689f6e4b
+Revises: 65e7dc8d5905
+Create Date: 2025-08-22 15:14:59.242274
+
+"""
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision: str = "5b76689f6e4b"
+down_revision: str | Sequence[str] | None = "65e7dc8d5905"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column("login_sessions", "user_agent",
+               existing_type=mysql.VARCHAR(length=255),
+               type_=sa.String(length=250),
+               existing_nullable=True)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column("login_sessions", "user_agent",
+               existing_type=sa.String(length=250),
+               type_=mysql.VARCHAR(length=255),
+               existing_nullable=True)
+    # ### end Alembic commands ###