feat: add lab tests, patient file management, and prescription improvements

app/Observers/PatientIllnessObserver.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers;
+
+use App\Models\PatientIllness;
+use Illuminate\Support\Facades\Cache;
+
+class PatientIllnessObserver
+{
+    public function saved(PatientIllness $patientIllness): void
+    {
+        Cache::forget('illness_options_1');
+        Cache::forget('illness_options_2');
+    }
+
+    public function deleted(PatientIllness $patientIllness): void
+    {
+        Cache::forget('illness_options_1');
+        Cache::forget('illness_options_2');
+    }
+}

app/Observers/PatientObserver.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Observers;
+
+use App\Models\Patient;
+use Illuminate\Support\Facades\Storage;
+
+class PatientObserver
+{
+    private const FILE_FIELDS = ['photos_before', 'photos_after', 'videos', 'audio_files'];
+
+    public function updating(Patient $patient): void
+    {
+        foreach (self::FILE_FIELDS as $field) {
+            $rawOld   = $patient->getRawOriginal($field);
+            $oldFiles = ! empty($rawOld) ? (json_decode($rawOld, true) ?? []) : [];
+            $newFiles = array_values((array) ($patient->getAttribute($field) ?? []));
+            $removed  = array_diff($oldFiles, $newFiles);
+
+            foreach ($removed as $path) {
+                if (! empty(trim((string) $path))) {
+                    Storage::disk('public')->delete($path);
+                }
+            }
+        }
+    }
+
+    public function deleting(Patient $patient): void
+    {
+        foreach (self::FILE_FIELDS as $field) {
+            $files = $patient->getAttribute($field) ?? [];
+
+            foreach ((array) $files as $path) {
+                Storage::disk('public')->delete($path);
+            }
+        }
+    }
+}