feat: batch-cook shopping list (already worked) + leftover expiry reminders

Shopping list add already worked generically for batch-cook recipes —
no code needed there.

New: mark a specific batch-cook dish as "cooked today", track its
fridge expiry (cookingHistory.batchDishId), surface a "Leftovers
expiring soon" widget on the pantry page, and send a daily push+email
reminder via a new /api/internal/cron/leftover-reminders endpoint
(mirrors the weekly-digest cron pattern; doesn't use the social
notifications table, which requires a non-null actor and isn't built
for self-reminders).

Also fixes, from user-reported bugs:
- Recipe cards showed no batch-cook badge/dish-count/prep-time in some
  views — added dishCount + prepMins/cookMins (now generated by the AI
  and persisted) to the card component and /recipes query.
- Batch-cook descriptions occasionally contained raw markdown
  (**bold**) — added explicit "plain prose only" prompt instructions
  and a stripMarkdown() defensive fallback at render time.
- Truncated/cut-off descriptions — the generateObject call had no
  maxOutputTokens set, so long structured responses could get cut off
  mid-field; now capped explicitly at 8000.
- Generate dialogs (batch-cook + the main AI dialog) could show
  buttons unreachable once the progress bar appeared mid-generation —
  restructured so the action row is pinned outside the scrollable
  content area, not affected by content height changes.
- /api/internal/* routes were being redirected to /login by middleware
  before their own CRON_SECRET check ever ran (pre-existing bug,
  affected the weekly-digest cron too) — added to PUBLIC_PATHS.

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

apps/web/lib/ai/features/generate-batch-cook.ts

@@ -4,14 +4,16 @@ import { resolveModel, type AiConfig } from "../factory";
 
 const BatchCookSchema = z.object({
   title: z.string().max(150),
-  description: z.string().max(300),
+  description: z.string().max(300).describe("Plain prose only — no markdown formatting (no **bold**, no bullet points, no headers)."),
+  prepMins: z.number().int().min(0).max(300).describe("Total hands-on prep time for the whole session, in minutes."),
+  cookMins: z.number().int().min(0).max(300).describe("Total passive cook/bake/simmer time for the whole session, in minutes."),
   dishes: z.array(z.object({
     name: z.string().max(100),
-    description: z.string().max(200),
+    description: z.string().max(200).describe("Plain prose only — no markdown formatting."),
     fridgeDays: z.number().int().min(1).max(7),
     freezerFriendly: z.boolean(),
     freezerNote: z.string().max(150).optional(),
-    dayOfInstructions: z.string().max(300),
+    dayOfInstructions: z.string().max(300).describe("Plain prose only — no markdown formatting."),
   })).min(1).max(6),
   ingredients: z.array(z.object({
     rawName: z.string().describe("Ingredient name only — never include the quantity or unit here."),
@@ -72,7 +74,11 @@ Dishes must be genuinely distinct — different techniques and flavor profiles (
 
 Every dish needs: fridgeDays, freezerFriendly, and a freezerNote if applicable (duration + thawing tip). dayOfInstructions must name the exact reheat method and time, AND a concrete fresh finishing touch (stir in cream, cook fresh grain, add a fresh side, sear a protein, grate cheese) — never generic ("reheat and enjoy" is unacceptable).
 
-For ingredients: quantity is a number only, unit is a separate string. Never combine them. Respond in ${lang}.`;
+For ingredients: quantity is a number only, unit is a separate string. Never combine them.
+
+Estimate prepMins (total hands-on active work across the whole session) and cookMins (total passive oven/stovetop/simmer time) for the whole session, in minutes.
+
+Write every description and instruction as plain prose — never use markdown formatting (no **bold**, no bullet lists, no headers, no asterisks). Keep every field within its stated length limit; a shorter, complete sentence is always better than a longer one that gets cut off. Respond in ${lang}.`;
 
   const systemPromptWithContext = systemPrompt + (config?.userContext ? `\n\nUser preferences and context:\n${config.userContext}` : "");
 
@@ -80,6 +86,7 @@ For ingredients: quantity is a number only, unit is a separate string. Never com
     model,
     schema: BatchCookSchema,
     system: systemPromptWithContext,
+    maxOutputTokens: 8000,
     prompt: [
       `Generate a batch-cooking session covering ${mealParts.join(" and ") || `${totalDishes} meals`}.`,
       `Design exactly ${totalDishes} distinct dishes, each for ${servings} servings.`,