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>

FEATURE_AUDIT.md

@@ -68,7 +68,8 @@ Status legend: **Exists** (fully working) · **Partial** (works but with a real
 | Grocery delivery integration | **Partial / stub** | Generic export payload works (integrator-shaped — no visible in-app UI consumer besides the Instacart adapter); Instacart adapter is an explicit stub (requires a partnership agreement Epicure doesn't have — returns 501 if unconfigured, throws if "configured") | `apps/web/lib/grocery-providers/instacart.ts` |
 | Other delivery/price integrations (DoorDash, Kroger, Walmart, live pricing) | **Missing** | Confirmed absent by repo-wide search | — |
 | Pantry manual CRUD | Exists | Includes a bulk case-insensitive name+unit merge endpoint (used by the scan-confirm flow), undocumented until this pass | `apps/web/app/api/v1/pantry/**` |
-| Auto-deduct pantry on cook | **API-only, dead in the UI** | The API logic is correct (name+unit matching, defaults `deductFromPantry: true`) — but both real UI callers (`batch-cook-dishes.tsx`, `meal-planner.tsx`'s mark-cooked flow) hardcode `deductFromPantry: false`. A home cook using the app today never triggers auto-deduction; it's only reachable via a direct API/API-key client. Previously documented as "Exists, one nuance," which overstated real-world behavior. | `apps/web/app/api/v1/recipes/[id]/cooked/route.ts`, `apps/web/components/recipe/batch-cook-dishes.tsx`, `apps/web/components/meal-plan/meal-planner.tsx` |
+| Auto-deduct pantry on cook | Exists (closed 2026-07-24) | Both UI callers that previously hardcoded `deductFromPantry: false` (`batch-cook-dishes.tsx`, `meal-planner.tsx`) now pass `true`. The new general "Mark cooked" feature (see below) additionally exposes it as a per-cook checkbox, default checked, rather than a silent always-on. | `apps/web/app/api/v1/recipes/[id]/cooked/route.ts`, `apps/web/components/recipe/batch-cook-dishes.tsx`, `apps/web/components/meal-plan/meal-planner.tsx` |
+| Mark recipe as cooked (any recipe, not just batch-cook) | Exists (new, 2026-07-24) | A recipe can be logged as cooked any number of times — each log is a new `cookingHistory` row, no unique constraint, this was already true at the schema level, just not exposed for plain (non-batch) recipes before. New dialog on the recipe page: date (defaults today, can backdate), servings, and a deduct-from-pantry toggle (default on). Shows a "cooked N times · last DATE" indicator once logged. | `apps/web/components/recipe/{mark-cooked-dialog,mark-cooked-section}.tsx`, `apps/web/app/api/v1/recipes/[id]/cooked/route.ts` (`cookedAt` field, new) |
 | Expiring-soon tracking | Exists | With "use it up" recipe suggestions. The leftover-expiry push/email cron only covers batch-cook dishes — plain pantry items only get an in-app badge, no reminder. | `apps/web/components/pantry/expiring-soon-suggestions.tsx`, `apps/web/app/api/internal/cron/leftover-reminders/route.ts` |
 | **Barcode scan (pantry)** | **Exists** | Real Open Food Facts API lookup by UPC/EAN | `apps/web/app/api/v1/pantry/scan/barcode` |
 | Photo scan (pantry) | Exists | Vision-model based | `apps/web/app/api/v1/pantry/scan/photo` |
@@ -159,7 +160,7 @@ Ranked roughly by likely value:
 9. **Offline coverage for shopping lists / meal plan** — currently recipe-viewing + mark-cooked only.
 10. ~~Moderator-scoped admin routes~~ — closed 2026-07-21 (reports + recipe-unpublish).
 11. **Followers-only recipes invisible on the author's own profile grid** (2026-07-24) — `u/[username]/page.tsx` only queries `visibility = "public"` for the grid, so a followers-only recipe shows up in a follower's feed but never on the profile it belongs to. Real bug, not a design choice.
-12. **Auto-deduct pantry on cook is dead in the UI** (2026-07-24) — correct, tested API logic that literally nothing in the product surfaces; both UI callers hardcode it off. Either wire it up (a real feature a home cook would want) or stop pretending it's a shipped feature.
+12. ~~Auto-deduct pantry on cook is dead in the UI~~ — closed 2026-07-24 (both UI callers now pass `true`; the new Mark Cooked dialog exposes it as a checkbox).
 13. ~~Model Prefs picker is ungated~~ — closed 2026-07-24 (now behind BYOK access, hidden entirely for everyone else).
 
 ## Consumer-friendliness assessment — "is Epicure too tech-savvy?" (2026-07-24)