feat: add psagentai agent with deployment and configuration

Initial project setup including the main agent script, configuration
files, profile JSON state, systemd service unit, startup script,
deployment documentation, and Python dependencies.

Includes .env, venv/, and __pycache__/ which should likely be
excluded via .gitignore to avoid committing secrets and artifacts.

venv/lib/python3.11/site-packages/docx/oxml/exceptions.py

@@ -0,0 +1,10 @@
+"""Exceptions for oxml sub-package."""
+
+
+class XmlchemyError(Exception):
+    """Generic error class."""
+
+
+class InvalidXmlError(XmlchemyError):
+    """Raised when invalid XML is encountered, such as on attempt to access a missing
+    required child element."""