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/const.py

@@ -0,0 +1,25 @@
+"""Constants for the Ninlight integration."""
+
+from __future__ import annotations
+
+from datetime import timedelta
+from typing import Final
+
+from homeassistant.const import Platform
+
+DOMAIN = "ninlight"
+
+PLATFORMS: Final = [Platform.LIGHT]
+
+CONF_TOKEN = "token"
+
+DEFAULT_PORT = 3333
+DEFAULT_TOKEN = "aabbccddeeff0011223344"
+
+# The firmware has no push channel, so state is polled. A bulb answers in well under
+# a second on the LAN; 30 s keeps the UI honest without adding noticeable REST traffic
+# for a nine bulb setup.
+SCAN_INTERVAL = timedelta(seconds=30)
+
+# Mirror of NL_MAX_TRANSITION_MS in src/light/nl_control.h.
+MAX_TRANSITION_MS = 60000