fix: hide recipe variations button when locked instead of disabled+lock-badge (v0.78.1)

Was the one gated feature still shown as a clickable disabled button with a small lock icon overlay, opening an upgrade dialog on click. Every other gated feature (pairings, nutrition estimate, markdown export) hides entirely instead — brought this one in line and removed the now-dead locked/UpgradeDialog code from VariationsButton.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/app/(app)/recipes/[id]/page.tsx

@@ -232,26 +232,27 @@ export default async function RecipePage({ params }: Params) {
                 ingredients={recipe.ingredients.map((ing) => ({ rawName: ing.rawName }))}
               />
             )}
-            <VariationsButton
-              recipeId={id}
-              baseServings={recipe.baseServings}
-              difficulty={recipe.difficulty}
-              prepMins={recipe.prepMins}
-              cookMins={recipe.cookMins}
-              ingredients={recipe.ingredients.map((ing) => ({
-                rawName: ing.rawName,
-                quantity: ing.quantity,
-                unit: ing.unit,
-                note: ing.note,
-                order: ing.order,
-              }))}
-              steps={recipe.steps.map((s) => ({
-                instruction: s.instruction,
-                timerSeconds: s.timerSeconds,
-                order: s.order,
-              }))}
-              locked={locked.variations}
-            />
+            {!locked.variations && (
+              <VariationsButton
+                recipeId={id}
+                baseServings={recipe.baseServings}
+                difficulty={recipe.difficulty}
+                prepMins={recipe.prepMins}
+                cookMins={recipe.cookMins}
+                ingredients={recipe.ingredients.map((ing) => ({
+                  rawName: ing.rawName,
+                  quantity: ing.quantity,
+                  unit: ing.unit,
+                  note: ing.note,
+                  order: ing.order,
+                }))}
+                steps={recipe.steps.map((s) => ({
+                  instruction: s.instruction,
+                  timerSeconds: s.timerSeconds,
+                  order: s.order,
+                }))}
+              />
+            )}
             <ForkRecipeButton recipeId={id} variant={isOwner ? "duplicate" : "fork"} />
             <ShareRecipeButton recipeId={id} visibility={recipe.visibility} />
             <SaveOfflineButton recipeId={id} recipeTitle={recipe.title} />