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/coordinator.py

@@ -8,12 +8,19 @@ from typing import Optional
 
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.exceptions import HomeAssistantError
+from homeassistant.helpers import issue_registry as ir
 from homeassistant.helpers.update_coordinator import DataUpdateCoordinator
 
 from pyfglair import Error, Prop, PropertyEvent, State, Template, Value, ValueKind
 from pyfglair.templates import template_info
 
-from .const import AVAILABLE_STATES, CONF_DSN, DOMAIN
+from .const import (
+    AVAILABLE_STATES,
+    CONF_DSN,
+    CONF_HOST,
+    CONF_NAME,
+    DOMAIN,
+)
 from .fglair_client import FglairClient
 from .overrides import ConversionSet
 
@@ -58,6 +65,7 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
         )
         self.client = client
         self.conversions = conversions
+        self.key_issue_id = f"key_mismatch_{client.data[CONF_DSN]}"
         self._synced = False
         self._sync_task: Optional[asyncio.Task] = None
         self._unsubs = [
@@ -94,6 +102,7 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
             available=state in AVAILABLE_STATES,
         )
         self.async_set_updated_data(self.data)
+        self.sync_issue(state)
         if state == State.ONLINE:
             if not self._synced and self._sync_task is None:
                 self._sync_task = self.hass.async_create_task(
@@ -116,6 +125,32 @@ class FglairCoordinator(DataUpdateCoordinator[FglairData]):
         # не могут вклиниться между чтением и присваиванием).
         self.data = self._snapshot()
         self.async_set_updated_data(self.data)
+        self.sync_issue()
+
+    @callback
+    def sync_issue(self, state: Optional[State] = None) -> None:
+        """Repair-issue key_error: создать/снять по состоянию сессии."""
+        current = state if state is not None else self.data.state
+        if current == State.KEY_ERROR:
+            ir.async_create_issue(
+                self.hass,
+                DOMAIN,
+                self.key_issue_id,
+                is_fixable=True,
+                severity=ir.IssueSeverity.ERROR,
+                translation_key="key_mismatch",
+                translation_placeholders={
+                    "device": self.client.data.get(CONF_NAME)
+                    or self.client.data[CONF_DSN],
+                    "host": str(self.client.data.get(CONF_HOST, "?")),
+                },
+            )
+        else:
+            ir.async_delete_issue(self.hass, DOMAIN, self.key_issue_id)
+
+    @callback
+    def async_remove_issue(self) -> None:
+        ir.async_delete_issue(self.hass, DOMAIN, self.key_issue_id)
 
     @callback
     def _on_property(self, event: PropertyEvent) -> None: