feat(shopfloor): Phase 3 — plant_kanban endpoint + dispatch

PV-Phase3 of the plant-view redesign.

- /fp/landing/plant_kanban JSONRPC endpoint returns {kpis, columns,
  cards} in one payload. One card per fp.job; cards denormalized so
  the OWL component doesn't fan out RPCs. Server-side filter handling
  for All / Mine / Running / Blocked / Overdue / FAIR. Within-column
  sort by (overdue, _SORT_PRIORITY[card_state], due_date).
- fusion_plating_shopfloor.action_fp_plant_kanban client action
  registered alongside the existing fp_shopfloor_landing action.
- fp_landing_data.xml resolver extended to read the layout flag and
  dispatch to v2 when x_fc_shopfloor_layout='v2' (default still legacy).

Card payload (23 fields): WO, customer, PN+rev, qty, PO, recipe, spec,
tags, current step + work centre, state chip, mini_timeline, operator,
icons (signoff / bake / tracking / etc.), progress.

State-chip mapping per spec §6.1 — one map keyed by card_state with
running-time elapsed, idle-hours, and operator-name interpolation.

Verified live — card payload sample on WO-30036 (contract_review state)
produces all expected keys + 9-element mini_timeline.

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

fusion_plating/fusion_plating_shopfloor/views/fp_plant_overview_views.xml

@@ -28,4 +28,18 @@
         <field name="tag">fp_process_tree</field>
     </record>
 
+    <!-- ================================================================== -->
+    <!-- Plant-view kanban (2026-05-23 redesign).                            -->
+    <!-- One card per fp.job grouped into 9 fixed columns by area_kind.      -->
+    <!-- Replaces fp_shopfloor_landing when x_fc_shopfloor_layout='v2'.      -->
+    <!-- The landing-action resolver in fusion_plating/data/fp_landing_data  -->
+    <!-- .xml dispatches between this and the legacy action based on the     -->
+    <!-- ir.config_parameter set by the new feature-flag setting.            -->
+    <!-- ================================================================== -->
+    <record id="action_fp_plant_kanban" model="ir.actions.client">
+        <field name="name">Shop Floor</field>
+        <field name="tag">fp_plant_kanban</field>
+        <field name="target">main</field>
+    </record>
+
 </odoo>