Stabilize discovery workflow

app/Repositories/ScanJobRepository.php

@@ -47,6 +47,19 @@ class ScanJobRepository
         return $results;
     }
 
+    public function findActive(): array
+    {
+        $statuses = ['pending', 'running', 'paused'];
+        $placeholders = implode(',', array_fill(0, count($statuses), '?'));
+        $stmt = $this->pdo->prepare("SELECT * FROM scan_jobs WHERE status IN ({$placeholders}) ORDER BY created_at ASC");
+        $stmt->execute($statuses);
+        $results = [];
+        while ($row = $stmt->fetch()) {
+            $results[] = ScanJob::fromArray($row);
+        }
+        return $results;
+    }
+
     public function findRunning(): array
     {
         $stmt = $this->pdo->prepare('SELECT * FROM scan_jobs WHERE status = :status ORDER BY started_at ASC');
@@ -58,6 +71,22 @@ class ScanJobRepository
         return $results;
     }
 
+    public function updateStatus(int $id, string $status): void
+    {
+        $finishedAt = in_array($status, ['done', 'failed', 'cancelled'], true)
+            ? (new \DateTimeImmutable())->format('Y-m-d H:i:s')
+            : null;
+
+        $stmt = $this->pdo->prepare(
+            'UPDATE scan_jobs SET status = :status, finished_at = :finished_at WHERE id = :id'
+        );
+        $stmt->execute([
+            'id' => $id,
+            'status' => $status,
+            'finished_at' => $finishedAt,
+        ]);
+    }
+
     public function save(ScanJob $job): void
     {
         $now = (new \DateTimeImmutable())->format('Y-m-d H:i:s');