АРЧ АП11 - Вынести living-chat boundary policy из assistantService в отдельный модуль

llm_normalizer/backend/tests/assistantBoundaryPolicy.test.ts

@@ -0,0 +1,68 @@
+import { describe, expect, it } from "vitest";
+import { createAssistantBoundaryPolicy } from "../src/services/assistantBoundaryPolicy";
+
+function createPolicy() {
+  return createAssistantBoundaryPolicy({
+    activeMcpChannel: "default",
+    normalizeOrganizationScopeValue: (value: unknown) => {
+      if (value === null || value === undefined) {
+        return null;
+      }
+      const text = String(value ?? "").trim();
+      return text.length > 0 ? text : null;
+    },
+    toNonEmptyString: (value: unknown) => {
+      if (value === null || value === undefined) {
+        return null;
+      }
+      const text = String(value ?? "").trim();
+      return text.length > 0 ? text : null;
+    },
+    hasOrganizationFactLookupSignal: (message: string) => /возраст|дата регистрации/i.test(message)
+  });
+}
+
+describe("assistantBoundaryPolicy", () => {
+  it("builds deterministic data-scope reply for single organization", () => {
+    const policy = createPolicy();
+
+    const reply = policy.buildAssistantDataScopeContractReply({
+      status: "resolved",
+      channel: "finance",
+      organizations: ["ООО Альтернатива Плюс"]
+    });
+
+    expect(reply).toContain("MCP-канале `finance`");
+    expect(reply).toContain("ООО Альтернатива Плюс");
+    expect(reply.toLowerCase()).toContain("read-only");
+  });
+
+  it("strips unexpected CJK fragments from live chat reply", () => {
+    const policy = createPolicy();
+
+    const guarded = policy.applyLivingChatScriptGuard(
+      "Прошу прощения, но я не могу продолжать этот разговор. 随时关注。",
+      "че как"
+    );
+
+    expect(guarded.applied).toBe(true);
+    expect(guarded.reason).toBe("unexpected_cjk_fragment_stripped");
+    expect(guarded.text).toContain("Прошу прощения");
+    expect(/[\u3400-\u9FFF\uF900-\uFAFF]/u.test(guarded.text)).toBe(false);
+  });
+
+  it("blocks ungrounded organization fact answer with deterministic boundary reply", () => {
+    const policy = createPolicy();
+
+    const guarded = policy.applyLivingChatGroundingGuard({
+      userMessage: "какой возраст у альтернативы?",
+      chatText: "Для ООО Альтернатива Плюс дата регистрации 01.07.2015, возраст 8 лет.",
+      organization: "ООО Альтернатива Плюс"
+    });
+
+    expect(guarded.applied).toBe(true);
+    expect(guarded.reason).toBe("organization_fact_without_live_source_blocked");
+    expect(guarded.text.toLowerCase()).toContain("не буду называть");
+    expect(guarded.text).not.toContain("01.07.2015");
+  });
+});