From cf54e4ba58ebbeb43376391bb14cbfbcbc409b6f Mon Sep 17 00:00:00 2001
From: jason <stedwell@gmail.com>
Date: Wed, 18 Mar 2026 23:48:14 -0500
Subject: [PATCH] usability workbench

---
 CHANGELOG.md                                  |  1 +
 .../src/modules/workbench/WorkbenchPage.tsx   | 71 +++++++++++++++++++
 2 files changed, 72 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d6a2c4..2155d12 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,7 @@ This file is the running release and change log for CODEXIUM. Keep it updated wh
 - Workbench usability depth with keyboard row navigation, enter-to-open behavior, escape-to-clear, and inline readiness/shortage/hold signal pills across planner rows and day-detail cards
 - Workbench dispatch workflow depth with saved planner views, a release queue for visible ready work, queued-record visibility in the sticky control bar, and batch release directly from the workbench
 - Workbench batch operation rebalance with multi-operation selection, sticky-bar batch reschedule controls, station reassignment across selected operations, and selected-operation visibility in row signals and focus context
+- Workbench conflict-intelligence pass with projected batch target load, overload warnings before batch station moves, and best-alternate-station suggestions inside the sticky rebalance controls
 - Project-side milestone and work-order rollups surfaced on project list and detail pages
 - Inventory SKU master builder with family-level sequence codes, branch-aware taxonomy management, and generated SKU previews on the item form
 - Thumbnail image attachment staging on inventory item create/edit pages, with upload-on-save and replacement/removal support
diff --git a/client/src/modules/workbench/WorkbenchPage.tsx b/client/src/modules/workbench/WorkbenchPage.tsx
index 3850522..5e28934 100644
--- a/client/src/modules/workbench/WorkbenchPage.tsx
+++ b/client/src/modules/workbench/WorkbenchPage.tsx
@@ -377,6 +377,46 @@ export function WorkbenchPage() {
   const stationLoadById = useMemo(() => new Map(stationLoads.map((station) => [station.stationId, station])), [stationLoads]);
   const selectedRescheduleStation = rescheduleStationId ? stations.find((station) => station.id === rescheduleStationId) ?? null : null;
   const selectedRescheduleLoad = selectedRescheduleStation ? stationLoadById.get(selectedRescheduleStation.id) ?? null : null;
+  const selectedOperationLoadMinutes = useMemo(() => selectedOperations.reduce((sum, record) => sum + Math.max(record.loadMinutes, 1), 0), [selectedOperations]);
+  const batchTargetLoad = useMemo(() => {
+    if (!batchStationId) {
+      return null;
+    }
+    const station = stations.find((candidate) => candidate.id === batchStationId) ?? null;
+    const load = stationLoadById.get(batchStationId) ?? null;
+    if (!station || !load) {
+      return null;
+    }
+    const projectedMinutes = load.totalPlannedMinutes + selectedOperationLoadMinutes;
+    const projectedUtilizationPercent = Math.round((projectedMinutes / Math.max(load.capacityMinutes, 1)) * 100);
+    return {
+      station,
+      load,
+      projectedMinutes,
+      projectedUtilizationPercent,
+      overloaded: projectedUtilizationPercent > 100,
+    };
+  }, [batchStationId, selectedOperationLoadMinutes, stationLoadById, stations]);
+  const batchStationSuggestions = useMemo(() => {
+    if (selectedOperations.length === 0) {
+      return [];
+    }
+    return stations
+      .filter((station) => station.isActive)
+      .map((station) => {
+        const load = stationLoadById.get(station.id);
+        const projectedMinutes = (load?.totalPlannedMinutes ?? 0) + selectedOperationLoadMinutes;
+        const capacityMinutes = Math.max(load?.capacityMinutes ?? station.dailyCapacityMinutes * station.parallelCapacity, 1);
+        const projectedUtilizationPercent = Math.round((projectedMinutes / capacityMinutes) * 100);
+        return {
+          station,
+          projectedUtilizationPercent,
+          overloaded: projectedUtilizationPercent > 100,
+        };
+      })
+      .sort((left, right) => left.projectedUtilizationPercent - right.projectedUtilizationPercent)
+      .slice(0, 3);
+  }, [selectedOperationLoadMinutes, selectedOperations.length, stationLoadById, stations]);
   const agendaItems = useMemo(
     () => [...focusRecords]
       .filter((record) => record.kind !== "OPERATION")
@@ -819,6 +859,37 @@ export function WorkbenchPage() {
                 {isBatchRescheduling ? "Applying..." : "Apply batch"}
               </button>
             </div>
+            <div className="mt-3 grid gap-2 xl:grid-cols-2">
+              <div className={`rounded-[16px] border px-2 py-2 text-xs ${batchTargetLoad?.overloaded ? "border-amber-300/60 bg-amber-400/10 text-amber-300" : "border-line/70 bg-surface text-muted"}`}>
+                <div className="section-kicker">TARGET LOAD</div>
+                {batchTargetLoad ? (
+                  <div className="mt-2 space-y-1">
+                    <div className="font-semibold text-text">{batchTargetLoad.station.code} - {batchTargetLoad.station.name}</div>
+                    <div>Projected util: <span className="font-semibold text-text">{batchTargetLoad.projectedUtilizationPercent}%</span></div>
+                    <div>Projected minutes: <span className="font-semibold text-text">{batchTargetLoad.projectedMinutes}</span></div>
+                    <div>{batchTargetLoad.overloaded ? "This batch move will overload the target station." : "This batch move stays within summarized station capacity."}</div>
+                  </div>
+                ) : (
+                  <div className="mt-2">Keeping current stations. Pick a station to preview the batch landing load.</div>
+                )}
+              </div>
+              <div className="rounded-[16px] border border-line/70 bg-surface px-2 py-2 text-xs text-muted">
+                <div className="section-kicker">BEST ALTERNATES</div>
+                <div className="mt-2 space-y-2">
+                  {batchStationSuggestions.map((suggestion) => (
+                    <button
+                      key={suggestion.station.id}
+                      type="button"
+                      onClick={() => setBatchStationId(suggestion.station.id)}
+                      className={`flex w-full items-center justify-between rounded-[14px] border px-2 py-2 text-left ${batchStationId === suggestion.station.id ? "border-brand bg-brand/10" : "border-line/70 bg-page/60"}`}
+                    >
+                      <span className="font-semibold text-text">{suggestion.station.code} - {suggestion.station.name}</span>
+                      <span className={suggestion.overloaded ? "text-amber-300" : "text-text"}>{suggestion.projectedUtilizationPercent}%</span>
+                    </button>
+                  ))}
+                </div>
+              </div>
+            </div>
             <div className="mt-3 flex flex-wrap gap-2 text-xs text-muted">
               {selectedOperations.slice(0, 6).map((record) => (
                 <span key={record.id} className="rounded-full border border-brand/40 bg-brand/10 px-2 py-1 text-text">