move tests into subfolder, add missing install hooks

tests/test_cli_shell.py

@@ -1,26 +0,0 @@
-#!/usr/bin/env python3
-"""
-Tests for archivebox shell command.
-Verify shell command starts Django shell (basic smoke tests only).
-"""
-
-import os
-import subprocess
-
-from .fixtures import *
-
-
-def test_shell_command_exists(tmp_path, process):
-    """Test that shell command is recognized."""
-    os.chdir(tmp_path)
-
-    # Test that the command exists (will fail without input but should recognize command)
-    result = subprocess.run(
-        ['archivebox', 'shell', '--help'],
-        capture_output=True,
-        text=True,
-        timeout=10,
-    )
-
-    # Should show shell help or recognize command
-    assert result.returncode in [0, 1, 2]