update to use sqlalchemy

- change from mysql-connector-python to sqlalchemy
    - allow for connection to sqlite3, mysql, mariadb, postgres, and
oracle databases
- change `DATE` columns to `DATETIME` type
- add WHO columns
- install database connectors and required packages

requirements.txt

@@ -1,10 +1,18 @@
 blinker==1.8.2
+cffi==1.17.1
 click==8.1.7
+cryptography==43.0.1
 Flask==3.0.3
+greenlet==3.0.3
 gunicorn==23.0.0
 itsdangerous==2.2.0
 Jinja2==3.1.4
 MarkupSafe==2.1.5
-mysql-connector-python==9.0.0
+oracledb==2.4.1
 packaging==24.1
+psycopg2==2.9.9
+pycparser==2.22
+PyMySQL==1.1.1
+SQLAlchemy==2.0.34
+typing_extensions==4.12.2
 Werkzeug==3.0.4