feat(iot): repackaged Odoo iot modules + Fusion Plating sensor wrapper

Phase A of the IoT initiative — gets the server-side infrastructure
in place before the Raspberry Pi hardware arrives, so the iot admin
UI + /fp/iot/ingest endpoint are ready to accept the first real
temperature reading as soon as the Pi is wired up.

New top-level folder: fusion_iot/

1. **iot_base/** — Odoo S.A. iot_base module, copied from
   RePackaged-Odoo verbatim. LGPL-3 upstream, no changes needed.

2. **iot/** — Odoo S.A. iot module, repackaged:
   - `models/update.py` neutralised (removed the publisher_warranty
     IoT-Box-counting report that phones home to odoo.com for
     enterprise licence enforcement)
   - `iot_handlers/lib/load_worldline_library.sh` deleted (proprietary
     Worldline payment lib fetch from download.odoo.com, not needed)
   - `wizard/add_iot_box.py._connect_iot_box_with_pairing_code` —
     upstream called odoo.com's iot-proxy to resolve pairing codes;
     replaced with a no-op. Pi-side iot_drivers proxy registers
     directly with this Odoo server instead.
   - Manifest rebranded with an explicit changelog preamble.

3. **fusion_plating_iot/** — new plating-specific wrapper:
   - `fp.tank.sensor` — maps an iot.device (or a direct-HTTP-ingest
     sensor) to a fusion.plating.tank + fusion.plating.bath.parameter.
     Supports DS18B20, PT100/1000, pH, conductivity, level. Per-sensor
     alert_min/max overrides.
   - `fp.tank.reading` — append-only time-series. On create, evaluates
     against sensor's alert range. On in-spec → out-of-spec TRANSITION,
     auto-raises a fusion.plating.quality.hold (once per excursion,
     no spam during sustained out-of-spec).
   - `POST /fp/iot/ingest` — shared-secret HTTP endpoint for sensors
     bypassing the Pi proxy. Token via X-FP-IOT-Token header OR body.
     Accepts single-reading or batch payloads.
   - Menu under Plating → Operations → Sensors & Readings.
   - Tank form inherits get a Sensors tab inline.

Deployed to entech. Verified end-to-end:
- Install: iot_base + iot + fusion_plating_iot all 'installed'
- Smoke test: in-spec → out-of-spec → hold raised (HOLD-0010);
  continued excursion → NO duplicate hold; back-in-spec → NEW
  excursion → NEW hold (HOLD-0011) ✓
- HTTP endpoint: correct token → 200 accepted; wrong token → 401;
  unknown device_serial → 404; batch payload → 200 accepted=N ✓

Phase B (when Raspberry Pi hardware arrives): DS18B20 iot_handler
driver for the Pi-side iot_drivers proxy + systemd service on
vanilla Raspberry Pi OS + first live reading from physical probe.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_iot/iot/static/src/iot_device_hook.js

@@ -0,0 +1,52 @@
+import { useService } from '@web/core/utils/hooks';
+import { DeviceController } from '@iot_base/device_controller';
+import { useEffect } from "@odoo/owl";
+
+/**
+ * Use this hook to be able to interact with an iot device.
+ * @param {{
+ *  getIotIp: () => string | undefined,
+ *  getIdentifier: () => string | undefined,
+ *  onValueChange: (data: any) => void,
+ *  onStartListening: (() => void) | undefined,
+ *  onStopListening: (() => void) | undefined,
+ * }} param0
+ */
+export const useIotDevice = ({ getIotIp, getIdentifier, getLongpollingHasFallback, onValueChange, onStartListening, onStopListening }) => {
+    // set default values for the device
+    getIotIp = getIotIp || (() => {});
+    getIdentifier = getIdentifier || (() => {});
+    getLongpollingHasFallback = getLongpollingHasFallback || (() => false);
+    onValueChange = onValueChange || (() => {});
+    onStartListening = onStartListening || (() => {});
+    onStopListening = onStopListening || (() => {});
+
+    const iotLongpolling = useService('iot_longpolling');
+    let iotDevice = null;
+
+    const startListening = () => {
+        iotDevice.addListener((data) => onValueChange(data), getLongpollingHasFallback());
+        onStartListening();
+    };
+
+    const stopListening = () => {
+        onStopListening();
+        iotDevice.removeListener();
+    };
+
+    useEffect(
+        (iotIp, identifier) => {
+            if (iotIp && identifier) {
+                iotDevice = new DeviceController(iotLongpolling, { iot_ip: iotIp, identifier });
+                startListening();
+                return () => {
+                    stopListening();
+                    iotDevice = null;
+                };
+            }
+        },
+        () => [getIotIp(), getIdentifier()]
+    );
+
+    return () => iotDevice;
+};