АДРЕСНЫЙ РЕЖИМ - стабилизация LLM fallback якорей и периода

llm_normalizer/backend/src/services/addressIntentResolver.ts

@@ -103,6 +103,46 @@ const BANK_OPERATIONS_BY_COUNTERPARTY_HINTS = [
   "поступлен",
   "движени"
 ];
+const DOCUMENTS_BY_CONTRACT_HINTS = [
+  "documents by contract",
+  "docs by contract",
+  "show documents by contract",
+  "list documents by contract",
+  "документы по договору",
+  "доки по договору",
+  "док по договору",
+  "документы договор",
+  "договор"
+];
+const BANK_OPERATIONS_BY_CONTRACT_HINTS = [
+  "bank operations by contract",
+  "bank payments by contract",
+  "payment orders by contract",
+  "transactions by contract",
+  "bank ops by contract",
+  "банковские операции по договору",
+  "платежи по договору",
+  "выписка по договору"
+];
+
+const BANK_OPERATION_CORE_HINTS = [
+  "банков",
+  "выписк",
+  "платеж",
+  "платёж",
+  "оплат",
+  "списан",
+  "поступлен",
+  "движени",
+  "транзак",
+  "bank",
+  "payment",
+  "payments",
+  "transaction",
+  "transactions",
+  "statement",
+  "wire"
+];
 
 function hasAny(text: string, patterns: string[]): boolean {
   return patterns.some((item) => text.includes(item));
@@ -198,6 +238,72 @@ function hasPartyAnchorMention(text: string): boolean {
   );
 }
 
+function hasContractAnchorMention(text: string): boolean {
+  return (
+    text.includes("договор") ||
+    text.includes("дог.") ||
+    text.includes("contract") ||
+    text.includes("dogovor")
+  );
+}
+
+function hasContractNumberLikeToken(text: string): boolean {
+  if (/(?:^|[\s([{])(?:№|#|n)\s*[a-zа-яё0-9][a-zа-яё0-9./_-]{1,}(?=$|[\s,.;:!?)\]}])/iu.test(text)) {
+    return true;
+  }
+
+  const rawTokens = text
+    .split(/[\s,;:!?()[\]{}"«»]+/u)
+    .map((token) => token.replace(/^[^\p{L}\p{N}#№]+|[^\p{L}\p{N}./_-]+$/gu, "").trim())
+    .filter((token) => token.length > 0);
+
+  for (const rawToken of rawTokens) {
+    const token = String(rawToken ?? "").trim();
+    if (!/^\d{1,6}[./_-]\d{1,6}(?:[./_-]\d{1,6})?$/u.test(token)) {
+      continue;
+    }
+    if (!token) {
+      continue;
+    }
+    const parts = token.split(/[./_-]+/u).map((part) => Number(part));
+    if (!parts.every((part) => Number.isFinite(part))) {
+      return true;
+    }
+
+    if (parts.length === 2) {
+      const [a, b] = parts;
+      const yearFirst = a >= 1900 && a <= 2099 && b >= 1 && b <= 12;
+      const yearSecond = b >= 1900 && b <= 2099 && a >= 1 && a <= 12;
+      if (yearFirst || yearSecond) {
+        continue;
+      }
+      return true;
+    }
+
+    if (parts.length === 3) {
+      const [a, b, c] = parts;
+      const ymd = a >= 1900 && a <= 2099 && b >= 1 && b <= 12 && c >= 1 && c <= 31;
+      const dmy = c >= 1900 && c <= 2099 && a >= 1 && a <= 31 && b >= 1 && b <= 12;
+      if (ymd || dmy) {
+        continue;
+      }
+      return true;
+    }
+
+    return true;
+  }
+
+  return false;
+}
+
+function hasContractAnchorSignal(text: string): boolean {
+  if (hasContractAnchorMention(text)) {
+    return true;
+  }
+  // Allow short forms like "15/24" for follow-up prompts if document/bank signal exists.
+  return hasContractNumberLikeToken(text) && hasDocsOrBankSignal(text);
+}
+
 function hasLooseByAnchorMention(text: string): boolean {
   const match = text.match(/(?:^|\s)по\s+([a-zа-яё][a-zа-яё0-9._-]{1,})(?=[\s,.;:!?)]|$)/iu);
   if (!match) {
@@ -260,6 +366,20 @@ function hasDocsOrBankSignal(text: string): boolean {
   );
 }
 
+function hasBankOperationSignal(text: string): boolean {
+  return hasAny(text, BANK_OPERATION_CORE_HINTS) || hasAny(text, BANK_OPERATIONS_BY_COUNTERPARTY_HINTS) || hasAny(text, BANK_OPERATIONS_BY_CONTRACT_HINTS);
+}
+
+function hasDocumentSignal(text: string): boolean {
+  return (
+    text.includes("док") ||
+    text.includes("доки") ||
+    text.includes("документ") ||
+    text.includes("docs") ||
+    text.includes("documents")
+  );
+}
+
 function hasHeuristicCounterpartyAnchor(text: string): boolean {
   if (!hasDocsOrBankSignal(text)) {
     return false;
@@ -329,6 +449,28 @@ export function resolveAddressIntent(userMessage: string): AddressIntentResoluti
     };
   }
 
+  if (
+    hasContractAnchorSignal(text) &&
+    hasBankOperationSignal(text)
+  ) {
+    return {
+      intent: "bank_operations_by_contract",
+      confidence: "medium",
+      reasons: ["bank_ops_by_contract_signal_detected"]
+    };
+  }
+
+  if (
+    hasContractAnchorSignal(text) &&
+    (hasAny(text, DOCUMENTS_BY_CONTRACT_HINTS) || hasDocumentSignal(text))
+  ) {
+    return {
+      intent: "list_documents_by_contract",
+      confidence: "medium",
+      reasons: ["documents_by_contract_signal_detected"]
+    };
+  }
+
   if (
     hasAny(text, BANK_OPERATIONS_BY_COUNTERPARTY_HINTS) &&
     (hasPartyAnchorMention(text) || hasLooseByAnchorMention(text) || hasHeuristicCounterpartyAnchor(text))