fix(cma): NP-001 verdict 口径统一(block→blocked)——命中即置 check_result=blocked

_eval_np001 原将 verdict 直取 severity('block')，而 check_result 汇总只认 'blocked'
→ e1 命中不生效、check_result 恒 pass，T4 豁免级联失败。改为 severity=='block'→'blocked'。

Ref: 0-P0-project-20260915-cma-treasury-stage1 自验电池 T3/T3b/T4

backend/app/api/treasury.py

@@ -159,7 +159,8 @@ def _eval_np001(db, entity_id, payment, rule) -> dict:
             budget_value, scope = bp.budget_value, f"kpi:{bp.kpi_id}@{period}"
     this_amt = _r(payment.amount)
     if budget_value is None:
-        return {"rule_code": "NP-001", "verdict": severity, "severity": severity,
+        return {"rule_code": "NP-001", "verdict": ("blocked" if severity == "block" else severity),
+                "severity": severity,
                 "detail": _hit_detail("NP-001", rule.rule_version, "none", None, this_amt,
                                       (params.get("unmatched") or "specify_budget_flow")
                                       + "（未匹配到预算：走指定/补录预算流程并留痕，不直接卡死）")}
@@ -175,7 +176,7 @@ def _eval_np001(db, entity_id, payment, rule) -> dict:
     prev = float(q.scalar() or 0)
     cumulative = _r(prev + this_amt)
     ok = cumulative <= float(budget_value) + TOL
-    verdict = "pass" if ok else severity
+    verdict = "pass" if ok else ("blocked" if severity == "block" else severity)
     basis = ("占用口径 %s；占用=已支付+已审批未支付+本单" % (params.get("occupancy") or "paid+approved+pending_approval+this"))
     if not ok:
         basis += f"；占用 {cumulative} 超过预算 {_r(budget_value)}"