Feature/ origin referrer

[lpi-tn]

This pull request introduces a new optional column, origin_referrer, to both the session and inferred_user tables in the user_related schema. The change includes an Alembic migration for database schema updates and corresponding model changes. The project version is also bumped to indicate a development version.

Database schema changes:

• Added a new nullable origin_referrer column (type String) to the session and inferred_user tables in the user_related schema via a new Alembic migration (068312e7800c_add_referrer_origin_column_to_user_and_).

ORM model updates:

• Updated the Session and InferredUser models in user_related.py to include the new optional origin_referrer field. [1] [2]

Project versioning:

• Bumped the project version in pyproject.toml to 1.2.0.dev0 to reflect new development changes.