fix(status): add qa_passed to legacy labels + migrate 8174-12-24 to drafted

qa_passed was set by the old agent pipeline but not included in the
trimmed 10-status CASE_STATUSES list or LEGACY_STATUS_LABELS, causing
the status badge and workflow timeline to render nothing ("לא ידוע").

Added qa_passed → "טיוטה" to LEGACY_STATUS_LABELS as a display-only
fallback so any case still carrying this value renders correctly until
migrated. Case 8174-12-24 status updated to drafted via PUT /api/cases.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web-ui/src/lib/api/case-status.ts

@@ -74,6 +74,7 @@ const LEGACY_STATUS_LABELS: Record<string, string> = {
   ready_for_writing: "מוכן לכתיבה",
   drafting:          "בכתיבה",
   qa_failed:         "בדיקת איכות נכשלה",
+  qa_passed:         "טיוטה",
 };
 
 /**