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/tqdm/contrib/utils_worker.py

@@ -0,0 +1,38 @@
+"""
+IO/concurrency helpers for `tqdm.contrib`.
+"""
+from collections import deque
+from concurrent.futures import ThreadPoolExecutor
+
+from ..auto import tqdm as tqdm_auto
+
+__author__ = {"github.com/": ["casperdcl"]}
+__all__ = ['MonoWorker']
+
+
+class MonoWorker:
+    """
+    Supports one running task and one waiting task.
+    The waiting task is the most recent submitted (others are discarded).
+    """
+    def __init__(self):
+        self.pool = ThreadPoolExecutor(max_workers=1)
+        self.futures = deque([], 2)
+
+    def submit(self, func, *args, **kwargs):
+        """`func(*args, **kwargs)` may replace currently waiting task."""
+        futures = self.futures
+        if len(futures) == futures.maxlen:
+            running = futures.popleft()
+            if not running.done():
+                if len(futures):  # clear waiting
+                    waiting = futures.pop()
+                    waiting.cancel()
+                futures.appendleft(running)  # re-insert running
+        try:
+            waiting = self.pool.submit(func, *args, **kwargs)
+        except Exception as e:
+            tqdm_auto.write(str(e))
+        else:
+            futures.append(waiting)
+            return waiting