feat: per-disposition feedback waiver

The overdue-feedback lists are a live query without stored state, so a
feedback nobody will provide any more could not be written off. The new
disposition.feedback_waived flag takes a placement out of the admin and
manager dashboards, the house-manager list and the reminder mail.

Statistics still count a waived placement as a missing feedback. The
flag has no UI yet and is set by SQL.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/Entity/Disposition.php

@@ -72,6 +72,14 @@ class Disposition implements BlameableEntityInterface, TimestampableEntityInterf
     #[ORM\Column(type: Types::BOOLEAN)]
     private bool $syncedWithBusProNet = false;
 
+    /**
+     * The office no longer expects a feedback for this placement, so nothing chases one: not the
+     * dashboards' overdue lists, not the house-manager list, not the reminder mail. It still
+     * counts as missing in the statistics.
+     */
+    #[ORM\Column(type: Types::BOOLEAN, options: ['default' => false])]
+    private bool $feedbackWaived = false;
+
     public function __construct(Application $application)
     {
         $this->uuid = Uuid::v4();
@@ -353,4 +361,16 @@ class Disposition implements BlameableEntityInterface, TimestampableEntityInterf
 
         return $this;
     }
+
+    public function isFeedbackWaived(): bool
+    {
+        return $this->feedbackWaived;
+    }
+
+    public function setFeedbackWaived(bool $feedbackWaived): static
+    {
+        $this->feedbackWaived = $feedbackWaived;
+
+        return $this;
+    }
 }