refactor: migrate API scripts to a centralized directory and implement shared database configuration

api/save_place.php

@@ -0,0 +1,19 @@
+<?php
+header('Content-Type: application/json');
+require_once __DIR__ . '/config.php';
+$conn = getDB();
+
+$name    = $_POST['name'];
+$lat     = $_POST['lat'];
+$lng     = $_POST['lng'];
+$radius  = $_POST['radius'];
+$type    = $_POST['type'];
+$address = $_POST['address']; // Capture the address
+
+$stmt = $conn->prepare("INSERT INTO worship_places (name, lat, lng, radius, type, address) VALUES (?, ?, ?, ?, ?, ?)");
+$stmt->bind_param("ssdiss", $name, $lat, $lng, $radius, $type, $address);
+
+if ($stmt->execute()) {
+    echo json_encode(["id" => $conn->insert_id]); 
+}
+?>