fix(appointment): resolve issue with reserved slots incorrectly shown as available

src/Appointment/Entity/Appointment.php

@@ -52,6 +52,22 @@ class Appointment
         self::STATUS_CONFIRMED,
     ];
 
+    /**
+     * Statuses that make a slot unavailable for a *new* booking, as seen by the
+     * public availability view (AppointmentRepository::isSlotTaken). Broader than
+     * SLOT_OCCUPYING_STATUSES: besides a live booking, a slot is also spoken for
+     * once the visit has been consumed (completed / in-progress / no_show). Only
+     * cancelled_* and expired truly release it. STATUS_PENDING is handled
+     * separately in the query because it blocks only while not yet expired.
+     */
+    public const SLOT_BLOCKING_STATUSES = [
+        self::STATUS_CONFIRMED,
+        self::STATUS_COMPLETED,
+        self::STATUS_FOLLOWING_UP,
+        self::STATUS_SALON,
+        self::STATUS_NO_SHOW,
+    ];
+
     // Optimistic locking
     #[ORM\Version]
     #[ORM\Column(type: 'integer')]