chore: prepare docker webgis deployment

01/api/choropleth/geojson.php

@@ -0,0 +1,22 @@
+<?php
+require_once '../../koneksi.php';
+header('Content-Type: application/json');
+
+$id = (int)($_GET['id'] ?? 0);
+if ($id <= 0) {
+    echo json_encode(['status' => 'error', 'message' => 'ID tidak valid.']); exit;
+}
+
+$stmt = $conn->prepare("SELECT geojson FROM choropleth_layers WHERE id = ?");
+$stmt->bind_param('i', $id);
+$stmt->execute();
+$row = $stmt->get_result()->fetch_assoc();
+$stmt->close();
+$conn->close();
+
+if (!$row) {
+    http_response_code(404);
+    echo json_encode(['status' => 'error', 'message' => 'Layer tidak ditemukan.']); exit;
+}
+
+echo $row['geojson'];