Remove quantity option from add/edit forms

Each discrete item (pre-roll, edible, etc.) is now always one
physical unit with its own asset ID. The quantity field is gone
from both add and edit flows, countOriginal is hardcoded to 1,
and price is just "Price" instead of "Price per unit."

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

web/src/components/ProductDetail.tsx

@@ -216,35 +216,11 @@ export function ProductDetail({
           >
             {(
               [
+                ["Price", fmt.money(item.price)],
                 [
-                  "Price",
+                  item.kind === "discrete" ? "Unit weight" : "Size",
-                  item.kind === "discrete" && item.countOriginal > 0 ? (
-                    <>
-                      {fmt.money(item.price / item.countOriginal)}
-                      <span style={{ fontSize: 14, color: "var(--ink-3)", marginLeft: 4 }}>
-                        /unit
-                      </span>
-                      <div
-                        style={{
-                          fontSize: 11,
-                          color: "var(--ink-3)",
-                          fontWeight: 400,
-                          marginTop: 2,
-                          fontFamily: "var(--mono)",
-                          letterSpacing: 0,
-                        }}
-                      >
-                        {fmt.money(item.price)} total
-                      </div>
-                    </>
-                  ) : (
-                    fmt.money(item.price)
-                  ),
-                ],
-                [
-                  item.kind === "discrete" ? "Quantity" : "Size",
                   item.kind === "discrete"
-                    ? `${item.countOriginal} ${cfg?.unit ?? "ct"}`
+                    ? `${item.unitWeight} g`
                     : `${item.weight} ${cfg?.unit ?? "g"}`,
                 ],
                 ["THC", `${item.thc.toFixed(1)}%`],

web/src/components/modals/AddInventoryFlow.tsx

@@ -397,7 +397,6 @@ function InstanceDetailsStep({
     shopId: last?.shopId ?? data.shops[0]?.id ?? NEW_SHOP,
     binId: data.bins[0]?.id ?? NEW_BIN,
     weight: last?.weight ?? (isDiscrete ? 0 : 3.5),
-    countOriginal: last?.countOriginal ?? (isDiscrete ? 1 : 0),
     unitWeight: last?.unitWeight ?? (isDiscrete ? 0.7 : 0),
     price: initialPrice,
     thc: last?.thc ?? 22,
@@ -414,7 +413,6 @@ function InstanceDetailsStep({
   const update = <K extends keyof typeof form>(k: K, v: (typeof form)[K]) =>
     setForm((f) => ({ ...f, [k]: v }));
 
-  const totalPrice = isDiscrete ? form.price * form.countOriginal : form.price;
   const cpg = !isDiscrete && form.weight > 0 ? form.price / form.weight : 0;
   const assetIdValid = ASSET_ID_RE.test(assetId);
   const assetIdConflict =
@@ -447,9 +445,9 @@ function InstanceDetailsStep({
         shopId,
         binId,
         weight: isDiscrete ? undefined : form.weight,
-        countOriginal: isDiscrete ? form.countOriginal : undefined,
+        countOriginal: isDiscrete ? 1 : undefined,
         unitWeight: isDiscrete ? form.unitWeight : undefined,
-        price: totalPrice,
+        price: form.price,
         thc: form.thc,
         cbd: form.cbd,
         totalCannabinoids: form.totalCannabinoids,
@@ -608,16 +606,7 @@ function InstanceDetailsStep({
           }}
         >
           {isDiscrete ? (
-            <>
+            <Field label="Unit weight (g)" span={2} hint="Weight of one unit — for grams stats">
-              <Field label={`Quantity (${cfg!.unit})`}>
-                <Input
-                  type="number"
-                  step="1"
-                  value={form.countOriginal}
-                  onChange={(e) => update("countOriginal", +e.target.value)}
-                />
-              </Field>
-              <Field label="Per-unit weight (g)" hint="For grams stats">
               <Input
                 type="number"
                 step="0.1"
@@ -625,7 +614,6 @@ function InstanceDetailsStep({
                 onChange={(e) => update("unitWeight", +e.target.value)}
               />
             </Field>
-            </>
           ) : (
             <Field label={`Size (${cfg?.unit ?? "g"})`} span={2}>
               <Input
@@ -636,7 +624,7 @@ function InstanceDetailsStep({
               />
             </Field>
           )}
-          <Field label={isDiscrete ? "Price per unit ($)" : "Price ($)"}>
+          <Field label="Price ($)">
             <Input
               type="number"
               step="0.01"
@@ -661,17 +649,6 @@ function InstanceDetailsStep({
             </span>
           </div>
         )}
-        {isDiscrete && form.price > 0 && form.countOriginal > 0 && (
-          <div style={{ marginTop: 12, fontSize: 12, color: "var(--ink-3)" }}>
-            Total:{" "}
-            <span className="mono" style={{ color: "var(--ink-2)" }}>
-              {fmt.money(totalPrice)}
-            </span>
-            <span style={{ marginLeft: 6 }}>
-              ({form.countOriginal} × {fmt.money(form.price)})
-            </span>
-          </div>
-        )}
 
         <div
           className="smallcaps"

web/src/components/modals/EditInventoryFlow.tsx

@@ -22,19 +22,13 @@ export function EditInventoryFlow({
   const qc = useQueryClient();
 
   const isDiscrete = item.kind === "discrete";
-  // form.price is total for bulk, per-unit for discrete. Convert at I/O boundaries.
-  const initialPrice =
-    isDiscrete && item.countOriginal > 0
-      ? item.price / item.countOriginal
-      : item.price;
 
   const [form, setForm] = useState({
     shopId: item.shopId ?? NEW_SHOP,
     binId: item.binId ?? NEW_BIN,
     weight: item.weight,
-    countOriginal: item.countOriginal,
     unitWeight: item.unitWeight,
-    price: initialPrice,
+    price: item.price,
     thc: item.thc,
     cbd: item.cbd,
     totalCannabinoids: item.totalCannabinoids,
@@ -50,7 +44,6 @@ export function EditInventoryFlow({
     setForm((f) => ({ ...f, [k]: v }));
 
   const cfg = TYPES.find((t) => t.id === item.type);
-  const totalPrice = isDiscrete ? form.price * form.countOriginal : form.price;
   const cpg = !isDiscrete && form.weight > 0 ? form.price / form.weight : 0;
 
   const save = useMutation({
@@ -76,9 +69,8 @@ export function EditInventoryFlow({
         shopId,
         binId,
         weight: isDiscrete ? undefined : form.weight,
-        countOriginal: isDiscrete ? form.countOriginal : undefined,
         unitWeight: isDiscrete ? form.unitWeight : undefined,
-        price: totalPrice,
+        price: form.price,
         thc: form.thc,
         cbd: form.cbd,
         totalCannabinoids: form.totalCannabinoids,
@@ -223,16 +215,7 @@ export function EditInventoryFlow({
             }}
           >
             {isDiscrete ? (
-              <>
+              <Field label="Unit weight (g)" span={2} hint="Weight of one unit — for grams stats">
-                <Field label={`Quantity (${cfg!.unit})`}>
-                  <Input
-                    type="number"
-                    step="1"
-                    value={form.countOriginal}
-                    onChange={(e) => update("countOriginal", +e.target.value)}
-                  />
-                </Field>
-                <Field label="Per-unit weight (g)" hint="For grams stats">
                 <Input
                   type="number"
                   step="0.1"
@@ -240,7 +223,6 @@ export function EditInventoryFlow({
                   onChange={(e) => update("unitWeight", +e.target.value)}
                 />
               </Field>
-              </>
             ) : (
               <Field label={`Size (${cfg?.unit ?? "g"})`} span={2}>
                 <Input
@@ -251,7 +233,7 @@ export function EditInventoryFlow({
                 />
               </Field>
             )}
-            <Field label={isDiscrete ? "Price per unit ($)" : "Price ($)"}>
+            <Field label="Price ($)">
               <Input
                 type="number"
                 step="0.01"
@@ -276,17 +258,6 @@ export function EditInventoryFlow({
               </span>
             </div>
           )}
-          {isDiscrete && form.price > 0 && form.countOriginal > 0 && (
-            <div style={{ marginTop: 12, fontSize: 12, color: "var(--ink-3)" }}>
-              Total:{" "}
-              <span className="mono" style={{ color: "var(--ink-2)" }}>
-                {fmt.money(totalPrice)}
-              </span>
-              <span style={{ marginLeft: 6 }}>
-                ({form.countOriginal} × {fmt.money(form.price)})
-              </span>
-            </div>
-          )}
 
           <div
             className="smallcaps"