Add Data Grand Lyon integration

New integration for Data Grand Lyon open data platform.
Supports config subentries for transit stops (with estimated/theoretical
passage merging) and bike sharing stations (with electrical/mechanical bike
breakdown).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Crocmagnon

.strict-typing

@@ -154,6 +154,7 @@ homeassistant.components.counter.*
 homeassistant.components.cover.*
 homeassistant.components.cpuspeed.*
 homeassistant.components.crownstone.*
+homeassistant.components.data_grandlyon.*
 homeassistant.components.date.*
 homeassistant.components.datetime.*
 homeassistant.components.deako.*

CODEOWNERS

@@ -0,0 +1,50 @@
+"""The Data Grand Lyon integration."""
+
+from __future__ import annotations
+
+from data_grand_lyon_ha import DataGrandLyonClient
+
+from homeassistant.const import CONF_PASSWORD, CONF_USERNAME, Platform
+from homeassistant.core import HomeAssistant
+from homeassistant.helpers.aiohttp_client import async_get_clientsession
+
+from .coordinator import DataGrandLyonConfigEntry, DataGrandLyonCoordinator
+
+PLATFORMS: list[Platform] = [Platform.SENSOR]
+
+
+async def async_setup_entry(
+    hass: HomeAssistant, entry: DataGrandLyonConfigEntry
+) -> bool:
+    """Set up Data Grand Lyon from a config entry."""
+    session = async_get_clientsession(hass)
+    client = DataGrandLyonClient(
+        session=session,
+        username=entry.data.get(CONF_USERNAME),
+        password=entry.data.get(CONF_PASSWORD),
+    )
+
+    coordinator = DataGrandLyonCoordinator(hass, entry, client)
+    await coordinator.async_config_entry_first_refresh()
+
+    entry.runtime_data = coordinator
+
+    entry.async_on_unload(entry.add_update_listener(async_update_entry))
+
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+
+    return True
+
+
+async def async_update_entry(
+    hass: HomeAssistant, entry: DataGrandLyonConfigEntry
+) -> None:
+    """Handle config entry update (e.g., subentry changes)."""
+    await hass.config_entries.async_reload(entry.entry_id)
+
+
+async def async_unload_entry(
+    hass: HomeAssistant, entry: DataGrandLyonConfigEntry
+) -> bool:
+    """Unload a config entry."""
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)