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/urllib3/contrib/emscripten/request.py

@@ -0,0 +1,22 @@
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+from ..._base_connection import _TYPE_BODY
+
+
+@dataclass
+class EmscriptenRequest:
+    method: str
+    url: str
+    params: dict[str, str] | None = None
+    body: _TYPE_BODY | None = None
+    headers: dict[str, str] = field(default_factory=dict)
+    timeout: float = 0
+    decode_content: bool = True
+
+    def set_header(self, name: str, value: str) -> None:
+        self.headers[name.capitalize()] = value
+
+    def set_body(self, body: _TYPE_BODY | None) -> None:
+        self.body = body