feat: mark recipe as cooked (multi-cook history + backdate) and enable auto-deduct pantry on cook (v0.75.0)

Adds a general-purpose "mark cooked" dialog for any recipe (not just batch-cook dishes), with a date picker for backdating and a pantry-deduct checkbox defaulted on. Also flips the previously dead-in-the-UI deductFromPantry flag to true for the existing batch-cook and meal-planner cook actions.

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

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

@@ -31,6 +31,7 @@ import { ServingScaler } from "@/components/recipe/serving-scaler";
 import { FavoriteButton } from "@/components/social/favorite-button";
 import { RatingStars } from "@/components/social/rating-stars";
 import { CookedItReview } from "@/components/social/cooked-it-review";
+import { MarkCookedSection } from "@/components/recipe/mark-cooked-section";
 import { RecipeNotes } from "@/components/recipe/recipe-notes";
 import { CommentsSection } from "@/components/social/comments-section";
 import { getPublicUrl } from "@/lib/storage";
@@ -127,6 +128,12 @@ export default async function RecipePage({ params }: Params) {
     }
   }
 
+  // Non-batch cook log — batch-cook recipes track this per-dish instead
+  // (dishCookedAtMap above), logged via BatchCookDishes, not this list.
+  const plainCookLog = dishCookLog.filter((l) => !l.batchDishId);
+  const cookCount = plainCookLog.length;
+  const lastCookedAt = plainCookLog[0]?.cookedAt.toISOString() ?? null;
+
   const avgScore = ratingData[0]?.avgScore ? parseFloat(ratingData[0].avgScore) : null;
   const ratingCount = ratingData[0]?.total ?? 0;
   const isFavorited = !!favoriteData;
@@ -492,6 +499,18 @@ export default async function RecipePage({ params }: Params) {
         </>
       )}
 
+      {!recipe.isBatchCook && (
+        <>
+          <Separator />
+          <MarkCookedSection
+            recipeId={id}
+            baseServings={recipe.baseServings}
+            cookCount={cookCount}
+            lastCookedAt={lastCookedAt}
+          />
+        </>
+      )}
+
       {recipe.visibility !== "private" && (
         <>
           <Separator />

apps/web/app/api/v1/recipes/[id]/cooked/route.ts

@@ -10,6 +10,9 @@ const Schema = z.object({
   notes: z.string().max(2000).optional(),
   deductFromPantry: z.boolean().default(true),
   batchDishId: z.string().optional(),
+  /** ISO date (YYYY-MM-DD) or full datetime — lets a user log a past cook,
+   * not just "just now". Defaults to now when omitted. */
+  cookedAt: z.string().optional(),
 });
 
 export async function POST(req: NextRequest, { params }: Params) {
@@ -44,6 +47,8 @@ export async function POST(req: NextRequest, { params }: Params) {
     isFirstBatchCook = !priorCook;
   }
 
+  const cookedAt = data.cookedAt ? new Date(data.cookedAt) : new Date();
+
   await db.insert(cookingHistory).values({
     id: crypto.randomUUID(),
     userId,
@@ -51,7 +56,7 @@ export async function POST(req: NextRequest, { params }: Params) {
     batchDishId: data.batchDishId,
     servings: data.servings,
     notes: data.notes,
-    cookedAt: new Date(),
+    cookedAt: isNaN(cookedAt.getTime()) ? new Date() : cookedAt,
   });
 
   if (data.deductFromPantry && (!data.batchDishId || isFirstBatchCook)) {