Fix admin route access and backend configuration

- Added /admin redirect to login page in nginx config
- Fixed backend server.js route ordering for proper admin handling
- Updated authentication middleware and routes
- Added user management routes
- Configured PostgreSQL integration
- Updated environment configuration

backend/test-login.js

@@ -0,0 +1,52 @@
+const express = require("express");
+const bcrypt = require("bcrypt");
+const { query } = require("./config/database");
+
+async function testLogin() {
+  const email = "admin@example.com";
+  const password = "Admin123";
+
+  try {
+    console.log("1. Querying database for user...");
+    const result = await query(
+      "SELECT id, email, name, passwordhash, role FROM adminusers WHERE email = $1",
+      [email]
+    );
+
+    if (result.rows.length === 0) {
+      console.log("❌ User not found");
+      return;
+    }
+
+    console.log("2. User found:", result.rows[0].email);
+
+    const admin = result.rows[0];
+    console.log("3. Comparing password...");
+    const validPassword = await bcrypt.compare(password, admin.passwordhash);
+
+    if (!validPassword) {
+      console.log("❌ Invalid password");
+      return;
+    }
+
+    console.log("4. ✓ Password valid!");
+
+    console.log("5. Updating last login...");
+    await query("UPDATE adminusers SET lastlogin = NOW() WHERE id = $1", [
+      admin.id,
+    ]);
+
+    console.log("6. ✓ Login successful!");
+    console.log("   User ID:", admin.id);
+    console.log("   Email:", admin.email);
+    console.log("   Name:", admin.name);
+    console.log("   Role:", admin.role);
+  } catch (error) {
+    console.error("❌ Error during login:", error.message);
+    console.error("   Stack:", error.stack);
+  }
+
+  process.exit(0);
+}
+
+testLogin();