Keep quoted portal responses Russian, and finish the English pass

.gitattributes

@@ -1,7 +1,7 @@
-# Переводы строк нормализуются на уровне репозитория, иначе результат зависит от
-# локального core.autocrlf разработчика: при autocrlf=true рабочая копия
-# получает CRLF, и `gofmt -l .` — та самая проверка, которую гоняет CI —
-# локально ругается на все файлы сразу.
+# Line endings are normalized at the repository level, otherwise the result
+# depends on the developer's local core.autocrlf: at autocrlf=true the working
+# copy gets CRLF, and `gofmt -l .` — the very check CI runs — complains locally
+# about every file at once.
 * text=auto eol=lf
 
 *.go   text eol=lf

CHANGELOG.md

@@ -41,7 +41,7 @@ section: it was fixed **before publication** and went into `0.1.0` — see the
   Exactly one thing was in the way: the SDK unconditionally appended `.json` to
   the method, and v3 does not accept that suffix —
   `…/rest/api/1/TOKEN/documentation` answers 200 while `documentation.json`
-  answers 404, "method `documentation.json` not found". The suffix is now
+  answers 404, "Метод `documentation.json` не найден". The suffix is now
   appended for v1 only, and **v1's behaviour did not change in any respect** —
   there are separate regression tests for that.
 
@@ -79,9 +79,9 @@ section: it was fixed **before publication** and went into `0.1.0` — see the
   sent.
 
 - **`APIError.Validation`** — the fields a v3 request was rejected over. The
-  code and the text of every such error are equally generic ("an error while
-  validating the request object"), so the list of fields is the only part that
-  says what exactly is wrong. v1 has no equivalent; there it is empty.
+  code and the text of every such error are equally generic
+  ("Ошибка при валидации объекта запроса"), so the list of fields is the only
+  part that says what exactly is wrong. v1 has no equivalent; there it is empty.
 
 - **`Result` with `Kind()`.** One and the same field is answered by Bitrix24
   with more than one shape, and which one it is depends on the **data**, not on
@@ -245,13 +245,14 @@ section: it was fixed **before publication** and went into `0.1.0` — see the
 
   v3 does have a `batch` method, but it is a different protocol: commands go
   into the **root** of the body as `{"method": …, "query": {…}}`, the reply is
-  an **array** in the order sent (the command keys are discarded), and the first
-  failing command aborts the whole request instead of producing `result_error`.
-  So `Batch`, `Ref`, `Halt` and `BatchResult` — the v1 protocol — have nothing
-  to map onto, and the partial failure `BatchError` exists for does not happen
-  there. The refusal takes the place of the portal's answer to a v1 batch body:
-  `BITRIX_REST_V3_EXCEPTION_INVALIDSELECTEXCEPTION`, "cannot parse the select
-  expression" — a message about `select` in response to a request that has none.
+  an **array** in submission order (the command keys are discarded), and the
+  first failing command aborts the whole request instead of producing
+  `result_error`. So `Batch`, `Ref`, `Halt` and `BatchResult` — the v1
+  protocol — have nothing to map onto, and the partial failure `BatchError`
+  exists for does not happen there. The refusal takes the place of the portal's
+  answer to a v1 batch body: `BITRIX_REST_V3_EXCEPTION_INVALIDSELECTEXCEPTION`,
+  "Не удается распознать выражение select" — a message about `select` in
+  response to a request that has none.
 
   Both sentinels name what to use instead: `Core.Call` with `pagination`, and
   `Core.Call` with `batch`.
@@ -265,7 +266,7 @@ Everything below is a cloud portal's answers, captured through the SDK's own
 calls.
 
 - `.json`: `…/rest/api/1/TOKEN/documentation` → 200,
-  `…/documentation.json` → 404, "method `documentation.json` not found".
+  `…/documentation.json` → 404, "Метод `documentation.json` не найден".
 - The success envelope matches v1's: `humanresources.employee.count` →
   `{"result":{"total":19},"time":{…}}`, `Unwrap(res.Result, "total")` = `19`.
 - Error shapes (9 different ones): nested — `…METHODNOTFOUNDEXCEPTION` (404),