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/opc/exceptions.py

@@ -0,0 +1,12 @@
+"""Exceptions specific to python-opc.
+
+The base exception class is OpcError.
+"""
+
+
+class OpcError(Exception):
+    """Base error class for python-opc."""
+
+
+class PackageNotFoundError(OpcError):
+    """Raised when a package cannot be found at the specified path."""