feat(sub12b): wire Move Parts + Stop Timer dialogs into tablet (Task 15)

ShopfloorTablet component:
- Imports the 3 new OWL dialogs.
- useService('dialog') for spawning.
- Listens for 'fp-resolve-rack' window CustomEvent fired from inside
  FpMovePartsDialog → spawns FpRackPartsDialog inline.
- New methods: openMovePartsDialog(from, to) + openStopTimerDialog(id).
  Refresh tablet after commit/reconcile so the UI reflects new state.

Listener cleanup on unmount.

Note: the actual buttons that call these methods are added to the
existing tablet XML in a follow-up step — for now they are wired but
not surfaced. Operators get them after Task 16 + smoke test.

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

fusion_plating/fusion_plating_shopfloor/static/src/js/shopfloor_tablet.js

@@ -20,6 +20,9 @@ import { registry } from "@web/core/registry";
 import { rpc } from "@web/core/network/rpc";
 import { useService } from "@web/core/utils/hooks";
 import { QrScanner } from "./qr_scanner";
+import { FpMovePartsDialog } from "./move_parts_dialog";
+import { FpStopTimerDialog } from "./stop_timer_dialog";
+import { FpRackPartsDialog } from "./rack_parts_dialog";
 
 export class ShopfloorTablet extends Component {
     static template = "fusion_plating_shopfloor.ShopfloorTablet";
@@ -29,8 +32,21 @@ export class ShopfloorTablet extends Component {
     setup() {
         this.notification = useService("notification");
         this.action = useService("action");
+        this.dialog = useService("dialog");
         this.scanInput = useRef("scanInput");
 
+        // Sub 12b — listen for the rack-resolution custom event fired
+        // from inside FpMovePartsDialog when the operator hits the
+        // 'Resolve' button on a rack-required blocker.
+        this._onResolveRack = (ev) => {
+            this.dialog.add(FpRackPartsDialog, {
+                fromStepId: ev.detail.fromStepId,
+                qty: ev.detail.qty || 0,
+                onRacked: () => this.refresh(),
+            });
+        };
+        window.addEventListener("fp-resolve-rack", this._onResolveRack);
+
         this.state = useState({
             overview: null,
             stationId: null,
@@ -56,6 +72,23 @@ export class ShopfloorTablet extends Component {
         onWillUnmount(() => {
             if (this._interval) clearInterval(this._interval);
             if (this._tickInterval) clearInterval(this._tickInterval);
+            window.removeEventListener("fp-resolve-rack", this._onResolveRack);
+        });
+    }
+
+    // ===================================================== Sub 12b dialogs
+
+    openMovePartsDialog(fromStepId, toStepId) {
+        this.dialog.add(FpMovePartsDialog, {
+            fromStepId, toStepId,
+            onCommit: () => this.refresh(),
+        });
+    }
+
+    openStopTimerDialog(timerId) {
+        this.dialog.add(FpStopTimerDialog, {
+            timerId,
+            onReconciled: () => this.refresh(),
         });
     }