3c-fix: partial consumption now deducts eaten + leftovers

- consumptionPortions = min(planned, actualPortionsEaten + leftoverEstimatePortions).
  Meal boxes are a subset of leftovers; raw inventory is only retained for
  portions that were never cooked.
- Added validation leftoverEstimatePortions >= mealBoxPortions with localized
  400 error (cooked.leftoverLessThanBox) in server i18n + all 12 locales.
- Removed unused COOKING_SESSION_STATUSES / MEAL_BOX_STATUSES imports from
  apps/api/src/lib/cooking.ts.
- Hardened test cleanup to delete mealBoxes/meals/recipeCooks/cookingSessions
  by household before dropping storageLocations.
- New regression tests: meal-box double-counting, eaten+leftover split, and
  leftover < box rejection.
- Updated FAS3-COOKING-SESSIONS-AUDIT.md with corrected physics semantics.

apps/mobile/src/locales/da/common.json

@@ -384,5 +384,6 @@
   "scan.diff.undo": "Fortryd",
   "scan.diff.undoHint": "Hver ændring kan fortrydes fra varedetaljevisningen.",
   "cooked.portionsSumExceedsPlanned": "Antal spiste portioner og rester må ikke overstige det samlede antal portioner.",
-  "cooked.undoWindowExpired": "Det er ikke længere muligt at fortryde denne madlavningssession. Tidsfristen på 24 timer er udløbet."
+  "cooked.undoWindowExpired": "Det er ikke længere muligt at fortryde denne madlavningssession. Tidsfristen på 24 timer er udløbet.",
+  "cooked.leftoverLessThanBox": "Resterne må være mindst lige så mange som antallet af madkasseportioner."
 }