feat: shopping list rename/delete, item reorder+categories+search, ingredient-quantity parsing fix

- Fixed a real i18n bug: the checked-count line called the wrong
  translation namespace and rendered the literal key on screen
- Shopping lists can now be renamed and deleted from both the list index
  and detail pages (API already supported delete; rename was net new)
- Root-caused "long list UI is off": meal-plan-generated lists never set
  an aisle, so every item fell into one undifferentiated "Other" bucket
  despite the grouping UI existing. Added a keyword-based aisle guesser
  wired into list generation (fallback only, never overrides an explicit
  aisle) plus a one-click "auto-categorize" for existing lists
- Items can now be reordered by drag-and-drop within a category (dnd-kit),
  recategorized via a dropdown, deleted, searched, and sorted (category /
  alphabetical / unchecked-first); searching flattens the grouped view
- Fixed a separate bug: AI-generated ingredients sometimes embedded the
  quantity/unit in the name itself (e.g. "2 cups flour" as one string).
  Added extractIngredientQuantity() as a Zod transform at both recipe
  create/update routes (the choke point every creation path funnels
  through) to split it back out, plus schema descriptions on the AI
  ingredient schemas as a prevention layer

New migration 0028 (shopping_list_items.sort_order), left unapplied like
the others. Verified with typecheck, lint, and a clean --no-cache docker
build.

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

apps/web/lib/ai/features/recipe-schema.ts

@@ -17,9 +17,13 @@ export const stepSchema = z.object({
 
 export function ingredientSchema<Q extends z.ZodTypeAny>(quantity: Q) {
   return z.object({
-    rawName: z.string(),
-    quantity: quantity.optional(),
-    unit: z.string().optional(),
+    rawName: z.string().describe(
+      "The ingredient name ONLY — e.g. 'flour', 'egg', 'olive oil'. Never include the " +
+      "quantity or unit here (not '2 cups flour', not '3 eggs'); those go in the separate " +
+      "quantity and unit fields."
+    ),
+    quantity: quantity.optional().describe("A number only, e.g. 0.25, 1.5, 2 — never combined with the unit."),
+    unit: z.string().optional().describe("The unit only, e.g. 'cup', 'tbsp', 'g', 'ml' — never combined with the quantity or name."),
     note: z.string().optional(),
   });
 }