Remove direct entry option from concentrate audits

Concentrates with a container weight now always use the weigh-container
input — no toggle is shown. Other bulk types (Flower) still get the
toggle between weigh container and direct entry.

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

web/src/components/modals/AuditFlow.tsx

@@ -55,6 +55,7 @@ export function AuditFlow({
     return helpers.estimatedRemaining(i, getToday(getStoredTimezone())).toFixed(2);
   };
   const [value, setValue] = useState<string>(initialValueFor(item));
+  const isConcentrate = item?.type === "Concentrate";
   const [inputMode, setInputMode] = useState<"direct" | "container">(
     item?.containerWeight != null ? "container" : "direct",
   );
@@ -177,7 +178,7 @@ export function AuditFlow({
                 </div>
               </div>
 
-              {tare != null && (
+              {tare != null && !isConcentrate && (
                 <div style={{ display: "flex", gap: 8, marginTop: 16 }}>
                   <Btn
                     variant={inputMode === "container" ? "primary" : "ghost"}