fix unit tests as well as missing code

app/Services/ClassProgress/ClassProgressAttachmentService.php

@@ -5,6 +5,7 @@ namespace App\Services\ClassProgress;
 use App\Models\ClassProgressAttachment;
 use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Storage;
 
 class ClassProgressAttachmentService
 {
@@ -48,6 +49,11 @@ class ClassProgressAttachmentService
         $candidates = [];
         if (str_starts_with($path, 'storage/')) {
             $relative = ltrim(substr($path, strlen('storage/')), '/');
+            $disk = (string) config('progress.attachments.disk', 'public');
+            if (Storage::disk($disk)->exists($relative)) {
+                return Storage::disk($disk)->path($relative);
+            }
+
             $candidates[] = storage_path('app/public/'.$relative);
         }
 

app/Services/ClassProgress/ClassProgressMutationService.php

@@ -86,6 +86,7 @@ class ClassProgressMutationService
                     'unit_title' => $unitTitle,
                     'covered' => $covered,
                     'homework' => $homework !== '' ? $homework : null,
+                    'next_week_plan' => trim((string) ($payload['next_week_plan'] ?? '')),
                     'status' => $this->rules->defaultStatus(),
                     'support_needed' => $payload['support_needed'] ?? null,
                     'flags_json' => $this->rules->normalizeFlags($payload['flags'] ?? null),
@@ -241,6 +242,7 @@ class ClassProgressMutationService
                     'unit_title' => $unitTitle,
                     'covered' => $covered,
                     'homework' => $homework !== '' ? $homework : null,
+                    'next_week_plan' => trim((string) ($payload['next_week_plan'] ?? $existing?->next_week_plan ?? '')),
                 ];
 
                 if ($flagsPresent) {