Plan task P3.1. New JSON-RPC endpoint for the Shop Floor Landing
client action (Phase 3). Two modes:
station — paired WC + Unassigned + next 1-2 WCs in recipe flow
all_plant — every active WC, recipe-flow order (replaces the data
path for the standalone fp_plant_overview action)
Returns {columns: [{work_center_id, work_center_name, cards}], kpis:
{ready, running, bakes_due, holds}, stations: [...], facility_name,
server_time}. Card payload matches the KanbanCard OWL component
(P1.7) — same shape, no client-side adapter needed.
Light implementation — no urgency scoring or batch prefetch yet.
Both can be ported from plant_overview if performance demands.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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