chore(tests): reorganize test suite and archive redundant scripts

- Moved legacy/redundant tests to tests/archive/.
- Relocated root-level debug scripts to tests/integration/.
- Updated tests/README.md with final organized inventory.
- Cleaned up root directory from one-off reproduction scripts.

tests/unit/test_unit_email_safe.py

@@ -1,63 +0,0 @@
-import sys
-import os
-import logging
-import unittest
-from unittest.mock import MagicMock, patch
-
-# Add current directory to path
-sys.path.append(os.getcwd())
-
-# Mock app.config BEFORE imports
-mock_config = MagicMock()
-mock_settings = MagicMock()
-mock_settings.SMTP = {}
-mock_config.settings = mock_settings
-sys.modules['app.config'] = mock_config
-
-# Mock html2text before importing app.lib_email
-sys.modules['html2text'] = MagicMock()
-
-# Configure logging
-logging.basicConfig(level=logging.DEBUG)
-
-from app.lib_email import send_email
-from app.config import settings
-
-class TestEmail(unittest.TestCase):
-    def test_send_email_missing_settings(self):
-        print("\nTesting send_email with missing SMTP settings...")
-        # settings is already mocked to have an empty SMTP dict
-        result = send_email(
-            from_email="test@example.com",
-            to_email="test@example.com",
-            subject="Test Email",
-            body_html="<p>Test</p>",
-            test=True
-        )
-        
-        print(f"Result (should be False): {result}")
-        self.assertFalse(result)
-
-    def test_send_email_invalid_port(self):
-        print("\nTesting send_email with invalid port...")
-        
-        settings.SMTP = {
-            'server': 'smtp.example.com',
-            'port': 'invalid',
-            'username': 'user',
-            'password': 'pass'
-        }
-        
-        result = send_email(
-            from_email="test@example.com",
-            to_email="test@example.com",
-            subject="Test Email",
-            body_html="<p>Test</p>",
-            test=True
-        )
-        
-        print(f"Result (should be False): {result}")
-        self.assertFalse(result)
-
-if __name__ == "__main__":
-    unittest.main()