Fix patient show 500 when assessment catalog reseed hits live answers.

ensureAssessmentCatalog was re-running AssessmentTemplateSeeder whenever
nursing packs were missing; the seeder hard-deleted questions and blew up
on FK care_assessment_answers. Upsert questions by code, only drop unused
orphans, and never let catalog ensure throw on web requests.

Co-authored-by: Cursor <cursoragent@cursor.com>

database/seeders/AssessmentTemplateSeeder.php

@@ -94,18 +94,16 @@ class AssessmentTemplateSeeder extends Seeder
                     ->update(['is_current' => false]);
             }
 
-            // Replace questions for this template version (stable codes within version).
-            AssessmentQuestion::query()->where('template_id', $template->id)->delete();
-
+            // Upsert questions by code so live answers keep their FK targets.
+            $keptCodes = [];
             $sort = 0;
             foreach ($data['questions'] as $q) {
                 if (empty($q['code']) || empty($q['label']) || empty($q['answer_type'])) {
                     throw new RuntimeException("Invalid question in pack {$path}");
                 }
                 $sort++;
-                AssessmentQuestion::create([
-                    'template_id' => $template->id,
-                    'code' => $q['code'],
+                $keptCodes[] = $q['code'];
+                $attributes = [
                     'section' => $q['section'] ?? null,
                     'label' => $q['label'],
                     'help_text' => $q['help_text'] ?? null,
@@ -115,9 +113,30 @@ class AssessmentTemplateSeeder extends Seeder
                     'sort_order' => (int) ($q['sort_order'] ?? $sort),
                     'score_key' => $q['score_key'] ?? null,
                     'validation' => $q['validation'] ?? null,
-                ]);
+                ];
+
+                $question = AssessmentQuestion::query()
+                    ->where('template_id', $template->id)
+                    ->where('code', $q['code'])
+                    ->first();
+
+                if ($question) {
+                    $question->fill($attributes)->save();
+                } else {
+                    AssessmentQuestion::create(array_merge($attributes, [
+                        'template_id' => $template->id,
+                        'code' => $q['code'],
+                    ]));
+                }
             }
 
+            // Drop obsolete pack questions only when nothing references them.
+            AssessmentQuestion::query()
+                ->where('template_id', $template->id)
+                ->whereNotIn('code', $keptCodes)
+                ->whereDoesntHave('answers')
+                ->delete();
+
             $this->command?->info(sprintf(
                 'Seeded assessment pack %s v%d (%d questions)',
                 $template->code,