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/strings.json

@@ -0,0 +1,20 @@
+{
+  "config": {
+    "step": {
+      "user": {
+        "title": "Lippert OneControl",
+        "description": "Enter the Bluetooth MAC address of the OneControl panel.",
+        "data": {
+          "address": "MAC Address"
+        }
+      }
+    },
+    "error": {
+      "cannot_connect": "Cannot connect to device. Verify it is powered on and in range.",
+      "invalid_mac": "Invalid MAC address format."
+    },
+    "abort": {
+      "already_configured": "This device is already configured."
+    }
+  }
+}