feat: explain RTC blockers when no R3 candidates are eligible

central/app/panel_presentation.py

@@ -190,9 +190,13 @@ def _rtc_products_view(resolution, enabled):
     ready = int(resolution.get("ready_to_apply", 0))
     conflicts = int(resolution.get("conflicts", 0)) + int(resolution.get("official_mismatch", 0))
     catalog = int(resolution.get("catalog_incompatible", 0))
+    reasons = resolution.get("by_reason") if isinstance(resolution.get("by_reason"), dict) else {}
+    simple_count = sum(int(count or 0) for reason, count in reasons.items() if str(reason).endswith("SIMPLES_ORIENTATION_PENDING_OFFICIAL_NT"))
+    other_reason_max = max((int(count or 0) for reason, count in reasons.items() if not str(reason).endswith("SIMPLES_ORIENTATION_PENDING_OFFICIAL_NT")), default=0)
     blocked = total - valid - ready
     pending = total - valid
     return {"total": total, "valid": valid, "ready": ready, "blocked": blocked, "pending": pending, "conflicts": conflicts, "catalog_incompatible": catalog, "suggestion_only": int(resolution.get("suggestion_only", 0)),
+            "simple_orientation_count": simple_count, "simple_orientation_dominant": simple_count > 0 and simple_count > other_reason_max,
             "headline": f"Reforma Tributária ativa — cClassTrib pendente em {pending} produto{'s' if pending != 1 else ''}" if pending else "Reforma Tributária ativa — todos os produtos com cClassTrib válido",
             "catalog": (resolution.get("catalog_compatibility") or {}).get("compatibility")}