Add HA custom integration; fix bleak 3.x write-without-response regression

The OneControl panel's command characteristic is a streaming (Write Without
Response) endpoint. Bleak 3.x changed write_gatt_char to default to
write-with-response when the char advertises the "write" property, so every
command (incl. switch turn_on/off) got rejected by the panel with ATT 0x0E
(Unlikely Error), surfaced as BleakGATTProtocolError. Force response=False on
the command write (matching the auth key write) to restore control.

Also commits the productionized custom_components integration (config flow,
coordinator, switch/sensor/cover entities, key-seed TEA auth, COBS codec) and
the matching src/ RE client/COBS fixes (big-endian framing, table-driven CRC8,
status-event decoding) that were developed but never tracked.

Verified live on the campsite HAOS Pi: switch.exterior_lights / interior_lights
toggle the physical panel with no GATT error.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

custom_components/lippert_onecontrol/__init__.py

@@ -0,0 +1,33 @@
+import logging
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+from .coordinator import OneControlCoordinator
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORMS = [Platform.SWITCH, Platform.SENSOR, Platform.COVER]
+
+
+async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    address = entry.data["address"]
+    coordinator = OneControlCoordinator(hass, address)
+    try:
+        await coordinator.async_connect()
+    except Exception as e:
+        _LOGGER.error("Failed to connect to OneControl at %s: %s", address, e)
+        return False
+
+    hass.data.setdefault(DOMAIN, {})[entry.entry_id] = coordinator
+    await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
+    return True
+
+
+async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
+    unload_ok = await hass.config_entries.async_unload_platforms(entry, PLATFORMS)
+    if unload_ok:
+        coordinator: OneControlCoordinator = hass.data[DOMAIN].pop(entry.entry_id)
+        await coordinator.async_disconnect()
+    return unload_ok