feat: ж/д слой + cant_swim в скоринг + профили вне модели

Определение специфических рекомендаций (матрица профилей §8):

1. Ж/д слой (закрыт мёртвый railway ×2.5 у РАС):
   - /api/v1/water/{case_id} отдаёт railway=rail как LineString
     (без service/industrial/military веток), кэш общий v2;
   - railway_warning «перекрыть/проверить немедленно» по профилям;
   - SearchMap: Polyline слой ж/д (тёмно-красный), счётчики 💧/🚂.

2. cant_swim → профиль не_умеет_плавать (water ×3.0, без изменения
   радиуса, critical_warning «обследовать водоёмы НЕМЕДЛЕННО»):
   - раньше чекбокс влиял только на текст, в скоринге был пробел;
   - derive в analyze._derive_profiles — работает и для closed_cases.

3. unmodeled_profiles: ДЦП/слабое зрение/слух — честная пометка
   «вне поведенческой модели» с пояснением (vector_tasks B12:
   профили без аналога не выдавать за учтённые); блок на фронте
   в карточке здоровья.

Площадь воды: сферический эксцесс, проверен на квадрате 53° (744017 м²
vs 743272 точного). Тесты: 202 passed (новый test_cant_swim_profile).

.venv-test/lib/python3.12/site-packages/sqlalchemy/util/concurrency.py

@@ -0,0 +1,110 @@
+# util/concurrency.py
+# Copyright (C) 2005-2026 the SQLAlchemy authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of SQLAlchemy and is released under
+# the MIT License: https://www.opensource.org/licenses/mit-license.php
+# mypy: allow-untyped-defs, allow-untyped-calls
+
+"""asyncio-related concurrency functions."""
+
+from __future__ import annotations
+
+import asyncio  # noqa
+import typing
+from typing import Any
+from typing import Callable
+from typing import Coroutine
+from typing import TypeVar
+
+have_greenlet = False
+greenlet_error = None
+try:
+    import greenlet  # type: ignore[import-untyped,unused-ignore]  # noqa: F401,E501
+except ImportError as e:
+    greenlet_error = str(e)
+    pass
+else:
+    have_greenlet = True
+    from ._concurrency_py3k import await_only as await_only
+    from ._concurrency_py3k import await_fallback as await_fallback
+    from ._concurrency_py3k import in_greenlet as in_greenlet
+    from ._concurrency_py3k import greenlet_spawn as greenlet_spawn
+    from ._concurrency_py3k import is_exit_exception as is_exit_exception
+    from ._concurrency_py3k import AsyncAdaptedLock as AsyncAdaptedLock
+    from ._concurrency_py3k import _Runner
+
+_T = TypeVar("_T")
+
+
+class _AsyncUtil:
+    """Asyncio util for test suite/ util only"""
+
+    def __init__(self) -> None:
+        if have_greenlet:
+            self.runner = _Runner()
+
+    def run(
+        self,
+        fn: Callable[..., Coroutine[Any, Any, _T]],
+        *args: Any,
+        **kwargs: Any,
+    ) -> _T:
+        """Run coroutine on the loop"""
+        return self.runner.run(fn(*args, **kwargs))
+
+    def run_in_greenlet(
+        self, fn: Callable[..., _T], *args: Any, **kwargs: Any
+    ) -> _T:
+        """Run sync function in greenlet. Support nested calls"""
+        if have_greenlet:
+            if self.runner.get_loop().is_running():
+                return fn(*args, **kwargs)
+            else:
+                return self.runner.run(greenlet_spawn(fn, *args, **kwargs))
+        else:
+            return fn(*args, **kwargs)
+
+    def close(self) -> None:
+        if have_greenlet:
+            self.runner.close()
+
+
+if not typing.TYPE_CHECKING and not have_greenlet:
+
+    def _not_implemented():
+        # this conditional is to prevent pylance from considering
+        # greenlet_spawn() etc as "no return" and dimming out code below it
+        if have_greenlet:
+            return None
+
+        raise ValueError(
+            "the greenlet library is required to use this function."
+            " %s" % greenlet_error
+            if greenlet_error
+            else ""
+        )
+
+    def is_exit_exception(e):  # noqa: F811
+        return not isinstance(e, Exception)
+
+    def await_only(thing):  # type: ignore  # noqa: F811
+        _not_implemented()
+
+    def await_fallback(thing):  # type: ignore  # noqa: F811
+        return thing
+
+    def in_greenlet():  # type: ignore  # noqa: F811
+        _not_implemented()
+
+    def greenlet_spawn(fn, *args, **kw):  # type: ignore  # noqa: F811
+        _not_implemented()
+
+    def AsyncAdaptedLock(*args, **kw):  # type: ignore  # noqa: F811
+        _not_implemented()
+
+    def _util_async_run(fn, *arg, **kw):  # type: ignore  # noqa: F811
+        return fn(*arg, **kw)
+
+    def _util_async_run_coroutine_function(fn, *arg, **kw):  # type: ignore  # noqa: F811,E501
+        _not_implemented()