changes to import added activity entity

database/seeders/ImportTemplateSeeder.php

@@ -155,5 +155,42 @@ public function run(): void
                 'options' => $map['options'] ?? null,
             ]);
         }
+
+        // Activities linked to contracts demo
+        $activities = ImportTemplate::query()->firstOrCreate([
+            'name' => 'Activities CSV (contract linked)',
+        ], [
+            'uuid' => (string) Str::uuid(),
+            'description' => 'Activities import linked to existing contracts via reference.',
+            'source_type' => 'csv',
+            'default_record_type' => 'activity',
+            'sample_headers' => ['contract_reference', 'note', 'due_date', 'amount', 'action', 'decision', 'user_email'],
+            'is_active' => true,
+            'meta' => [
+                'delimiter' => ',',
+                'enclosure' => '"',
+                'escape' => '\\',
+            ],
+        ]);
+
+        $activityMappings = [
+            ['source_column' => 'contract_reference', 'target_field' => 'contract.reference', 'position' => 1],
+            ['source_column' => 'note', 'target_field' => 'activity.note', 'position' => 2],
+            ['source_column' => 'due_date', 'target_field' => 'activity.due_date', 'position' => 3],
+            ['source_column' => 'amount', 'target_field' => 'activity.amount', 'position' => 4],
+            ['source_column' => 'action', 'target_field' => 'activity.action_id', 'position' => 5],
+            ['source_column' => 'decision', 'target_field' => 'activity.decision_id', 'position' => 6],
+        ];
+
+        foreach ($activityMappings as $map) {
+            ImportTemplateMapping::firstOrCreate([
+                'import_template_id' => $activities->id,
+                'source_column' => $map['source_column'],
+            ], [
+                'target_field' => $map['target_field'],
+                'position' => $map['position'],
+                'options' => $map['options'] ?? null,
+            ]);
+        }
     }
 }