fix: compact dense trail timeline

Co-authored-by: Codex <noreply@openai.com>

frontend/static/field_report.css

@@ -730,6 +730,8 @@ a { color: var(--accent); }
   .wp--compact.wp--sel .wp__title { max-width: 140px; }
   .episode-rail { flex-direction: column; gap: 8px; }
   .episode-rail__label { padding-top: 0; }
-  .episode-rail__item { max-width: 100%; }
+  .episode-rail__items { width: 100%; max-width: 100%; }
+  .episode-rail__item { width: 100%; max-width: 100%; box-sizing: border-box; }
+  .episode-rail__title { flex: 1; }
   .recov__row { grid-template-columns: 1fr; gap: 4px; }
 }