fix(monitor): Discord 'Scan Finished' always reported 100 findings

RunScanInProcess passed a percent-complete flag (0 or 100, named 'progress')
into SendScanNotification's findings-count parameter, so every completed scan's
Discord notification said 'Result: 100 findings discovered' regardless of
actual matches -- visibly wrong for e.g. the global nuclei scan that matched 0
hosts (UI correctly showed 0 rows / no parseable findings). This was previously
silent: SendScanNotification's switch only handled event 'finish', not
'complete' (fixed earlier this session), so this notification never actually
sent until that fix shipped -- which is what surfaced the wrong count now.

Use the DB record's FilesUploaded (set via db.UpdateScanStats by the module,
e.g. pipeline/global-nuclei match counts) instead, so the Discord count matches
what the Scan Results page shows.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: h0tak88r

internal/api/scan_runner.go

@@ -179,12 +179,16 @@ func RunScanInProcess(scanID, scanType, target string, fn func() error) {
 	// Index artifacts written by the module.
 	indexScanArtifacts(scanID, scanType, target)
 
-	progress := 0
-	if status == "completed" {
-		progress = 100
+	// findingsCount comes from the DB row's files_uploaded (set by the module via
+	// db.UpdateScanStats, e.g. pipeline/global-nuclei match counts) -- NOT a
+	// percent-complete flag. A prior version passed a 0/100 "progress" value here,
+	// so every completed scan reported "100 findings" regardless of real matches.
+	findingsCount := 0
+	if record != nil {
+		findingsCount = record.FilesUploaded
 	}
 	ScanLogf(scanID, "[%s] scan %s in %s", scanType, status, completedAt.Sub(startedAt).Round(time.Second))
-	utils.SendScanNotification("complete", scanID, target, scanType, status, progress)
+	utils.SendScanNotification("complete", scanID, target, scanType, status, findingsCount)
 	log.Printf("[runner] scan %s (%s/%s) %s in %s",
 		scanID, scanType, target, status, completedAt.Sub(startedAt).Round(time.Second))