feat: implement full authentication system and CRUD APIs for users, rumah ibadah, and penduduk miskin with database updates.

api/login.php

@@ -0,0 +1,55 @@
+<?php
+header('Content-Type: application/json; charset=UTF-8');
+require_once 'db_connect.php';
+
+if (session_status() === PHP_SESSION_NONE) {
+    session_start();
+}
+
+$data = json_decode(file_get_contents('php://input'), true);
+$username = trim($data['username'] ?? '');
+$password = trim($data['password'] ?? '');
+
+if (empty($username) || empty($password)) {
+    echo json_encode(['status' => 'error', 'message' => 'Username dan password wajib diisi']);
+    exit;
+}
+
+// Cari user di database
+$sql = "SELECT u.*, ri.nama as nama_ibadah 
+        FROM users u 
+        LEFT JOIN rumah_ibadah ri ON u.ibadah_id = ri.id 
+        WHERE u.username = ?";
+$stmt = $conn->prepare($sql);
+$stmt->bind_param('s', $username);
+$stmt->execute();
+$result = $stmt->get_result();
+
+if ($result->num_rows === 1) {
+    $user = $result->fetch_assoc();
+    // Verifikasi password
+    if (password_verify($password, $user['password'])) {
+        $_SESSION['user_id']     = $user['id'];
+        $_SESSION['username']    = $user['username'];
+        $_SESSION['role']        = $user['role'];
+        $_SESSION['ibadah_id']   = $user['ibadah_id'];
+        $_SESSION['nama_ibadah'] = $user['nama_ibadah'];
+        
+        echo json_encode([
+            'status' => 'success',
+            'message' => 'Login berhasil',
+            'data' => [
+                'id' => intval($user['id']),
+                'username' => $user['username'],
+                'role' => $user['role'],
+                'ibadah_id' => $user['ibadah_id'] ? intval($user['ibadah_id']) : null,
+                'nama_ibadah' => $user['nama_ibadah']
+            ]
+        ]);
+        exit;
+    }
+}
+
+echo json_encode(['status' => 'error', 'message' => 'Username atau password salah']);
+$conn->close();
+?>