Slim API deployment - composer install + full CRUD endpoints

api/src/Models/Appointment.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+final class Appointment extends Model
+{
+    protected $table = 'appointments';
+    protected $fillable = [
+        'tenant_id', 'student_id', 'instructor_id', 'lesson_type_id',
+        'title', 'category', 'start_at', 'end_at', 'units',
+        'status', 'notes', 'warning_acknowledged', 'created_by', 'updated_by',
+    ];
+    protected $casts = [
+        'student_id' => 'integer', 'instructor_id' => 'integer',
+        'lesson_type_id' => 'integer', 'units' => 'integer',
+        'warning_acknowledged' => 'integer', 'created_by' => 'integer', 'updated_by' => 'integer',
+    ];
+
+    public function tenant(): BelongsTo { return $this->belongsTo(Tenant::class, 'tenant_id'); }
+    public function student(): BelongsTo { return $this->belongsTo(Student::class, 'student_id'); }
+    public function instructor(): BelongsTo { return $this->belongsTo(Instructor::class, 'instructor_id'); }
+    public function lessonType(): BelongsTo { return $this->belongsTo(LessonType::class, 'lesson_type_id'); }
+}