Укрепить debt-boundary ответы MCP discovery

llm_normalizer/backend/tests/assistantDeepTurnResponseRuntimeAdapter.test.ts

@@ -235,6 +235,24 @@ describe("assistant deep turn response runtime adapter", () => {
 
     expect(runtime.response.assistant_reply).toContain("Discovery answer");
     expect(runtime.debug?.mcp_discovery_response_applied).toBe(true);
+    expect(runtime.debug?.truth_gate_contract_status).toBe("partial_supported");
+    expect(runtime.debug?.truth_mode).toBe("limited");
+    expect(runtime.debug?.coverage_gate_contract).toEqual(
+      expect.objectContaining({
+        coverage_status: "partial",
+        evidence_grade: "medium",
+        grounding_status: "partial",
+        truth_mode: "limited",
+        source_truth_gate_status: "partial_supported"
+      })
+    );
+    expect(runtime.debug?.answer_shape_contract).toEqual(
+      expect.objectContaining({
+        answer_shape: "limited_with_reason",
+        reply_type: "partial_coverage",
+        may_state_confirmed_facts: true
+      })
+    );
     expect(runFinalizeDeepTurn).toHaveBeenCalledWith(
       expect.objectContaining({
         assistantReply: expect.stringContaining("Discovery answer"),

llm_normalizer/backend/tests/assistantMcpDiscoveryResponseCandidate.test.ts

@@ -523,6 +523,116 @@ describe("assistant MCP discovery response candidate", () => {
     expect(candidate.reply_text).not.toContain("руб..");
   });
 
+  it("keeps debt due-date boundary answers useful and hides row counters", () => {
+    const candidate = buildAssistantMcpDiscoveryResponseCandidate(
+      entryPoint({
+        turn_input: {
+          adapter_status: "ready",
+          turn_meaning_ref: {
+            raw_message: "По ООО Альтернатива Плюс на конец 2020 можно точно понять, какая дебиторка просрочена?",
+            effective_message: "Проверить просроченную дебиторку ООО Альтернатива Плюс на конец 2020.",
+            asked_domain_family: "business_overview",
+            asked_action_family: "debt_due_date_boundary",
+            explicit_organization_scope: "ООО Альтернатива Плюс",
+            explicit_date_scope: "2020-12-31"
+          },
+          data_need_graph: {
+            business_fact_family: "business_overview",
+            reason_codes: ["data_need_graph_family_business_overview"]
+          }
+        },
+        bridge: {
+          bridge_status: "answer_draft_ready",
+          user_facing_response_allowed: true,
+          business_fact_answer_allowed: true,
+          requires_user_clarification: false,
+          pilot: {
+            pilot_scope: "business_overview_route_template_v1",
+            derived_business_overview: {
+              debt_due_date_aging: {
+                evidence_status: "no_payment_terms_configured",
+                as_of_date: "2020-12-31",
+                gross_open_amount_human_ru: "35 472 380,36 руб.",
+                rows_with_amount: 46
+              }
+            }
+          },
+          answer_draft: {
+            answer_mode: "confirmed_with_bounded_inference",
+            headline: "Debt boundary.",
+            confirmed_lines: [],
+            inference_lines: [],
+            unknown_lines: [],
+            limitation_lines: [],
+            next_step_line: null
+          }
+        }
+      })
+    );
+
+    expect(candidate.reply_text).toContain("35 472 380,36 руб.");
+    expect(candidate.reply_text).toContain("срок оплаты не установлен");
+    expect(candidate.reply_text).toContain("нельзя честно назвать эти остатки просрочкой");
+    expect(candidate.reply_text).toContain("Что проверить дальше");
+    expect(candidate.reply_text).not.toContain("Проверено строк");
+    expect(candidate.reply_text).not.toContain("строк с суммой");
+  });
+
+  it("answers short debt boundary follow-ups directly instead of replaying the full debt packet", () => {
+    const candidate = buildAssistantMcpDiscoveryResponseCandidate(
+      entryPoint({
+        turn_input: {
+          adapter_status: "ready",
+          turn_meaning_ref: {
+            raw_message: "То есть просрочку доказать нельзя, коротко почему?",
+            effective_message: "Коротко объяснить, почему просрочку нельзя доказать.",
+            asked_domain_family: "business_overview",
+            asked_action_family: "debt_due_date_boundary",
+            explicit_organization_scope: "ООО Альтернатива Плюс",
+            explicit_date_scope: "2020-12-31"
+          },
+          data_need_graph: {
+            business_fact_family: "business_overview",
+            question: "То есть просрочку доказать нельзя, коротко почему?",
+            reason_codes: ["data_need_graph_family_business_overview"]
+          }
+        },
+        bridge: {
+          bridge_status: "answer_draft_ready",
+          user_facing_response_allowed: true,
+          business_fact_answer_allowed: true,
+          requires_user_clarification: false,
+          pilot: {
+            pilot_scope: "business_overview_route_template_v1",
+            derived_business_overview: {
+              debt_due_date_aging: {
+                evidence_status: "no_payment_terms_configured",
+                as_of_date: "2020-12-31",
+                gross_open_amount_human_ru: "35 472 380,36 руб.",
+                rows_with_amount: 46
+              }
+            }
+          },
+          answer_draft: {
+            answer_mode: "confirmed_with_bounded_inference",
+            headline: "Debt boundary.",
+            confirmed_lines: [],
+            inference_lines: [],
+            unknown_lines: [],
+            limitation_lines: [],
+            next_step_line: null
+          }
+        }
+      })
+    );
+
+    expect(candidate.reply_text?.split("\n")[0]).toContain("доказать просрочку");
+    expect(candidate.reply_text?.split("\n")[0]).toContain("нельзя");
+    expect(candidate.reply_text).toContain("due date");
+    expect(candidate.reply_text).not.toContain("Проверено строк");
+    expect(candidate.reply_text).not.toContain("строк с суммой");
+  });
+
   it("uses a compact direct answer for business-overview top year questions", () => {
     const candidate = buildAssistantMcpDiscoveryResponseCandidate(
       entryPoint({