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/pip/_internal/distributions/installed.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from pip._internal.distributions.base import AbstractDistribution
+from pip._internal.metadata import BaseDistribution
+
+if TYPE_CHECKING:
+    from pip._internal.build_env import BuildEnvironmentInstaller, BuildIsolationMode
+
+
+class InstalledDistribution(AbstractDistribution):
+    """Represents an installed package.
+
+    This does not need any preparation as the required information has already
+    been computed.
+    """
+
+    @property
+    def build_tracker_id(self) -> str | None:
+        return None
+
+    def get_metadata_distribution(self) -> BaseDistribution:
+        assert self.req.satisfied_by is not None, "not actually installed"
+        return self.req.satisfied_by
+
+    def prepare_distribution_metadata(
+        self,
+        build_env_installer: BuildEnvironmentInstaller,
+        build_isolation: BuildIsolationMode,
+        check_build_deps: bool,
+        allow_editables: bool,
+    ) -> None:
+        pass