ha(H4): repair key_mismatch, диагностика для ESPHome, reconfigure, переводы

- repairs: issue key_mismatch (ERROR, fixable) при состоянии key_error,
  ConfirmRepairFlow, снятие issue при online/unload/remove
- config flow: async_step_reconfigure (меню, prefill ручной формы,
  unique_id_mismatch, update_reload_and_abort) — путь «перепровижинировать»
- diagnostics: config/esp_home (dsn/lanip_key/key_id/host для secrets.yaml)
  + esp_home_masked и redacted entry_data, runtime-снимок значений
  (raw/display) из кэша ядра
- translations: issues.key_mismatch (title/description/fix_flow) en/ru,
  abort unique_id_mismatch/reconfigure_successful; тест согласованности
  strings↔en↔ru
- FglairClient.events_dropped; mock_ac: параметр key_id в фикстуре
- тесты: diagnostics, repairs issue+fix-flow, reconfigure (успех/чужое
  устройство), translations (45 components)

custom_components/fglair/config_flow.py

@@ -8,7 +8,7 @@ from functools import partial
 from typing import Any
 
 import voluptuous as vol
-from homeassistant.config_entries import ConfigFlow, ConfigFlowResult
+from homeassistant.config_entries import ConfigEntry, ConfigFlow, ConfigFlowResult
 from homeassistant.helpers import selector
 
 import pyfglair
@@ -259,6 +259,29 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
         self._devices: list[Device] = []
         self._pending_data: dict[str, Any] = {}
         self._trial_properties: dict[Any, Any] = {}
+        self._reconfigure_entry: ConfigEntry | None = None
+
+    async def async_step_reconfigure(
+        self, user_input: dict[str, Any] | None = None
+    ) -> ConfigFlowResult:
+        """Повторная настройка (в т.ч. смена LAN-ключа после key_error)."""
+        self._reconfigure_entry = self._get_reconfigure_entry()
+        return await self.async_step_user()
+
+    def _reconfigure_suggestions(self) -> dict[str, Any] | None:
+        entry = self._reconfigure_entry
+        if entry is None:
+            return None
+        fields = (
+            CONF_HOST,
+            CONF_DEVICE_PORT,
+            CONF_DSN,
+            CONF_LANIP_KEY,
+            CONF_LANIP_KEY_ID,
+            CONF_NAME,
+            CONF_MODEL,
+        )
+        return {key: entry.data[key] for key in fields if key in entry.data}
 
     def _show_form(
         self,
@@ -366,6 +389,8 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
             if error is None:
                 return await self.async_step_preview()
             errors["base"] = error
+        if user_input is None and self._reconfigure_entry is not None:
+            user_input = self._reconfigure_suggestions()
         return self._show_form(
             "manual", _manual_schema(), errors, user_input,
             exclude=(CONF_LANIP_KEY,),
@@ -472,7 +497,10 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
     async def _async_trial(self, data: dict[str, Any]) -> str | None:
         """None — сессия поднялась; иначе ключ ошибки формы."""
         await self.async_set_unique_id(data[CONF_DSN], raise_on_progress=False)
-        self._abort_if_unique_id_configured()
+        if self._reconfigure_entry is not None:
+            self._abort_if_unique_id_mismatch()
+        else:
+            self._abort_if_unique_id_configured()
         result: TrialResult = await self.hass.async_add_executor_job(
             partial(_run_trial, data)
         )
@@ -488,4 +516,8 @@ class FglairConfigFlow(ConfigFlow, domain=DOMAIN):
 
     def _create_entry(self, data: dict[str, Any]) -> ConfigFlowResult:
         title = data.get(CONF_NAME) or data[CONF_DSN]
+        if self._reconfigure_entry is not None:
+            return self.async_update_reload_and_abort(
+                self._reconfigure_entry, title=title, data=data
+            )
         return self.async_create_entry(title=title, data=data)