feat: add automated test cleanup infrastructure

- Add cleanup-tests.sh script for automated test reorganization
- Safely backup manual test files with timestamps in tests/.backup/
- Generate cleanup-report.json with migration metrics
- Validate test structure after cleanup
- Log detailed cleanup progress and results

Enables safe migration from manual to automated testing

tests/.backup/admin-login-debug.js.20250908-012049

@@ -0,0 +1,35 @@
+/* eslint-disable no-console */
+// Simple test script to verify admin login functionality
+// Run this in the browser console to test admin credentials
+
+async function testAdminLogin() {
+  console.log('🧪 Testing admin login...');
+
+  // Import the services (this won't work directly, but helps us understand the flow)
+  console.log('Admin credentials:');
+  console.log('Email: admin@localhost');
+  console.log('Password: admin123!');
+
+  // Check if admin user exists in localStorage
+  const users = JSON.parse(localStorage.getItem('users') || '[]');
+  console.log('All users in localStorage:', users);
+
+  const adminUser = users.find(u => u.email === 'admin@localhost');
+  console.log('Admin user found:', adminUser);
+
+  if (adminUser) {
+    console.log('Admin user details:');
+    console.log('- Email:', adminUser.email);
+    console.log('- Password:', adminUser.password);
+    console.log('- Role:', adminUser.role);
+    console.log('- Status:', adminUser.status);
+    console.log('- Email Verified:', adminUser.emailVerified);
+  } else {
+    console.log('❌ Admin user not found in localStorage');
+  }
+}
+
+// Instructions
+console.log('Copy and paste this function in browser console:');
+console.log(testAdminLogin.toString());
+console.log('Then run: testAdminLogin()');

tests/.backup/auth-db-debug.js.20250908-012049

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+/* eslint-disable no-console */
+// Simple test to verify auth database functionality
+// Run this in browser console at http://localhost:5174
+
+console.log('Testing Authentication Database...');
+
+// Test the mock database service
+async function testDatabase() {
+  try {
+    // Import the services (this would work in browser context)
+    const { dbService } = await import('./services/couchdb.ts');
+    const { authService } = await import('./services/auth/auth.service.ts');
+
+    console.log('1. Testing user creation with password...');
+
+    // Test creating a user with password
+    const testEmail = 'test@example.com';
+    const testPassword = 'password123';
+
+    try {
+      const newUser = await dbService.createUserWithPassword(
+        testEmail,
+        testPassword
+      );
+      console.log('✅ User created successfully:', newUser);
+    } catch (error) {
+      if (error.message.includes('already exists')) {
+        console.log('ℹ️  User already exists, testing login...');
+      } else {
+        console.error('❌ User creation failed:', error);
+        return;
+      }
+    }
+
+    console.log('2. Testing password login...');
+
+    // Test login with password
+    try {
+      const loginResult = await authService.login({
+        email: testEmail,
+        password: testPassword,
+      });
+      console.log('✅ Password login successful:', loginResult);
+    } catch (error) {
+      console.error('❌ Password login failed:', error);
+    }
+
+    console.log('3. Testing OAuth user creation...');
+
+    // Test OAuth user creation
+    const oauthData = {
+      email: 'oauth@example.com',
+      username: 'oauth_user',
+      avatar: 'https://example.com/avatar.jpg',
+    };
+
+    try {
+      const oauthUser = await dbService.createUserFromOAuth(oauthData);
+      console.log('✅ OAuth user created successfully:', oauthUser);
+    } catch (error) {
+      if (error.message.includes('already exists')) {
+        console.log('ℹ️  OAuth user already exists');
+      } else {
+        console.error('❌ OAuth user creation failed:', error);
+      }
+    }
+
+    console.log('4. Testing user lookup by email...');
+
+    // Test finding users
+    const foundUser = await dbService.findUserByEmail(testEmail);
+    console.log('✅ User found by email:', foundUser);
+
+    console.log('🎉 All database tests completed!');
+  } catch (error) {
+    console.error('💥 Test setup failed:', error);
+  }
+}
+
+// Export for manual testing
+if (typeof window !== 'undefined') {
+  window.testAuthDB = testDatabase;
+  console.log('Run window.testAuthDB() to test the authentication database');
+}

tests/.backup/debug-email-validation.js.20250908-012049

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+/* eslint-disable no-console */
+// Test the email validation in browser console
+console.log('Testing email validation for admin@localhost');
+
+const emailRegex = /^[^\s@]+@[^\s@]+(\.[^\s@]+|localhost)$/;
+const testEmail = 'admin@localhost';
+
+console.log('Email:', testEmail);
+console.log('Regex:', emailRegex.toString());
+console.log('Test result:', emailRegex.test(testEmail));
+
+// Let's also test step by step
+console.log('Parts breakdown:');
+console.log('- Has @ symbol:', testEmail.includes('@'));
+console.log('- Before @:', testEmail.split('@')[0]);
+console.log('- After @:', testEmail.split('@')[1]);
+console.log('- No spaces:', !/\s/.test(testEmail));
+
+// Let's test a simpler regex that should definitely work
+const simpleRegex = /^[^@\s]+@[^@\s]+$/;
+console.log('Simple regex test:', simpleRegex.test(testEmail));
+
+// Copy this code and paste it in the browser console when you get the validation error

tests/cleanup-report.json

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+{
+  "cleanup_date": "2025-09-08T08:20:49Z",
+  "removed_files": ["manual/admin-login-debug.js", "manual/auth-db-debug.js", "manual/debug-email-validation.js"],
+  "added_files": [
+    "__mocks__/index.js",
+    "e2e/auth-debug.spec.ts",
+    "e2e/test-utils.ts",
+    "integration/run-integration.sh",
+    "README-CLEANUP.md"
+  ],
+  "optimizations": {
+    "removed_manual_tests": 3,
+    "added_automated_tests": 1,
+    "consolidated_mocks": true,
+    "added_test_utilities": true,
+    "improved_documentation": true
+  },
+  "test_count_before": {
+    "manual": 3,
+    "e2e": 5,
+    "integration": 1,
+    "unit": "variable"
+  },
+  "test_count_after": {
+    "manual": 0,
+    "e2e": 6,
+    "integration": 1,
+    "unit": "variable"
+  }
+}