Stand 2026-04-13: PHP/MySQL Infrastruktur, Flussmanagement, Stadt-Prototyp

- PHP/MySQL Backend (XAMPP + Produktionsserver)
- Front-Controller, API-Endpunkte, Session-Management
- Flussmanagement-Simulation (Echtzeit, Punkt-basierter Fluss)
- Stadt & Raumplanung (Prototyp, Top-Down Kachelsystem)
- Klimawaechter 3D: Deiche kleiner, Baeume kippen, Budget angepasst
- persistence.ts: Dualer Speicher (localStorage + Server-API)
- 6 Unit-Test-Dateien fuer bestehende Simulationen

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

App/php/api/assessment.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * API: Assessment-Daten speichern
+ * POST /api/assessment {simId, processLog, predictions, results, reflections, duration, completedPhases}
+ */
+
+header('Content-Type: application/json; charset=utf-8');
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    Response::error('Nur POST erlaubt', 405);
+}
+
+$sessionId = Session::requireStudent();
+$body = json_decode(file_get_contents('php://input'), true);
+if (!$body || !isset($body['simId'])) {
+    Response::error('simId erforderlich');
+}
+
+$db = Database::get();
+
+// class_id aus student_session holen
+$session = $db->fetchOne('SELECT class_id FROM student_sessions WHERE id = ?', [$sessionId]);
+$classId = $session ? $session['class_id'] : null;
+
+$db->execute(
+    'INSERT INTO assessments (session_id, sim_id, class_id, process_log, predictions, results, reflections, duration_ms, completed_phases)
+     VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)',
+    [
+        $sessionId,
+        $body['simId'],
+        $classId,
+        json_encode($body['processLog'] ?? []),
+        json_encode($body['predictions'] ?? []),
+        json_encode($body['results'] ?? []),
+        json_encode($body['reflections'] ?? []),
+        $body['duration'] ?? 0,
+        json_encode($body['completedPhases'] ?? []),
+    ]
+);
+
+Response::ok(['id' => $db->lastInsertId()]);