chore(tools): qconnex-Migrationswerkzeug und HA-Integration ins Repo

qconnex-listen/ (OTA-Falle: AP + DHCP + Range-Server, Onboarding-Client) und
ha-integration/ (Home-Assistant-custom_component ninlight) waren seit der
Erfindung nur auf diesem Rechner. Bilder, Request-Log, hostapd-Log und PIDs
ueber .gitignore draussen - die Images sind generierbar, sobald die
Signierschluessel erreichbar sind. otaserve.py bildet jetzt auch die
Montana-Black-Produkt-ID auf ledshield_rgb ab.

ha-integration/custom_components/ninlight/__init__.py

@@ -0,0 +1,54 @@
+"""The Ninlight integration."""
+
+from __future__ import annotations
+
+import logging
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .const import CONF_TOKEN, DEFAULT_PORT, PLATFORMS
+from .coordinator import NinlightConfigEntry, NinlightCoordinator
+
+_LOGGER = logging.getLogger(__name__)
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: NinlightConfigEntry) -> bool:
+    """Set up a Ninlight bulb from a config entry."""
+    coordinator = NinlightCoordinator(hass, entry)
+
+    # Register the teardown before the first refresh: HA runs the on_unload callbacks both
+    # when setup fails and when the entry unloads, and awaits the coroutine they return.
+    # That covers every exit path, so no bulb client can be left with an open connection
+    # slot. The bulb serves one request per connection, so this matters.
+    entry.async_on_unload(coordinator.async_shutdown)
+
+    try:
+        await coordinator.async_config_entry_first_refresh()
+    except Exception:
+        # ConfigEntryNotReady / ConfigEntryAuthFailed propagate to HA, which retries or
+        # raises reauth. Close now rather than waiting for the retry.
+        await coordinator.async_shutdown()
+        raise
+
+    entry.runtime_data = coordinator
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: NinlightConfigEntry) -> bool:
+    """Unload a config entry."""
+    return await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
+
+
+async def async_migrate_entry(hass: HomeAssistant, config_entry: ConfigEntry) -> bool:
+    """Migrate an entry written by an earlier version of this integration."""
+    if config_entry.version > 1:
+        return False
+    if "port" not in config_entry.data or CONF_TOKEN not in config_entry.data:
+        new = dict(config_entry.data)
+        new.setdefault("port", DEFAULT_PORT)
+        new.setdefault(CONF_TOKEN, new.pop("api_key", ""))
+        hass.config_entries.async_update_entry(config_entry, data=new, version=1)
+        _LOGGER.debug("Migrated ninlight entry %s to v1", config_entry.entry_id)
+    return True