feat: generate a complete themed meal from a collection (v0.52.0)

New "Generate meal" button on any owned collection — pick a theme (free
text) and 2-6 courses (starter/main/side/dessert/drink), one generateObject
call produces a coherent recipe per course (shared cuisine/style, matching
flavors across courses) and all of them get saved as real recipes and
added to that collection in one action.

Follows the meal-plan generation route's established pattern: single
withAiQuota charge for the whole generation, then a pre-flight loop
charging the tier's recipe limit once per generated recipe (rolled back
on a partial breach) before the insert transaction runs. Recipes are
tagged with their course name for later filtering; visibility defaults to
private like every other AI-generated recipe.

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

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

@@ -9,6 +9,7 @@ import { RecipeCard } from "@/components/recipe/recipe-card";
 import { CollectionRecipesGrid } from "@/components/collections/collection-recipes-grid";
 import { ForkCollectionButton } from "@/components/collections/fork-collection-button";
 import { ShareCollectionButton } from "@/components/collections/share-collection-button";
+import { GenerateMealDialog } from "@/components/collections/generate-meal-dialog";
 import { buttonVariants } from "@/components/ui/button";
 import { cn } from "@/lib/utils";
 import { ExportMarkdownButton } from "@/components/shared/export-markdown-button";
@@ -65,6 +66,7 @@ export default async function CollectionPage({ params }: Params) {
               />
             </>
           )}
+          {isOwner && <GenerateMealDialog collectionId={id} />}
           {isOwner && <ShareCollectionButton collectionId={id} />}
           {!isOwner && col.isPublic && (
             <ForkCollectionButton collectionId={id} />