feat: collections overhaul — reorder, search, edit/delete, tags (v0.53.0)

Seven related improvements to collections:

- Drag-and-drop reorder (dnd-kit, same pattern as the shopping list) — new
  collection_recipes.position column (migration 0049, backfilled from
  existing added_at order so nothing jumps around on upgrade).
- Search collections by name/description (server-side, list page) and
  search recipes within a collection (client-side filter, already loaded).
- Edit collection: name/description/tags/private notes via a new dialog;
  new collections.notes + collections.tags columns.
- Delete collection with a choice to also delete its recipes — only ones
  the deleting user actually owns, never recipes shared in by others.
- Collection detail (both owner and public view) now renders the same
  RecipeGridCard used on /recipes, instead of the older, plainer RecipeCard.
- Collection list cards redesigned — photo-collage preview (first 4 recipe
  covers/placeholders), tag badges, cleaner layout.
- Fixed the recipe count shown on a collection card: the query capped the
  `recipes` relation at 1 for thumbnail purposes and then read `.length`
  off that same capped array, so it never showed more than 1. Now a
  proper grouped count query, separate from the thumbnail fetch.

New/changed endpoints documented in OpenAPI: PATCH /collections/{id}/reorder,
DELETE /collections/{id}?deleteRecipes, PUT /collections/{id}'s new
notes/tags fields.

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

apps/web/lib/changelog.ts

@@ -1,5 +1,5 @@
 // Mirrors CHANGELOG.md at the repo root — update both together.
-export const APP_VERSION = "0.52.1";
+export const APP_VERSION = "0.53.0";
 
 export type ChangelogEntry = {
   version: string;
@@ -11,6 +11,16 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.53.0",
+    date: "2026-07-19 15:20",
+    added: [
+      "Collections got a big upgrade: drag-and-drop reorder recipes, search collections and search within a collection, edit name/description/tags/private notes, delete with a choice to also delete the recipes (only ones you own), and tags/labels on collections themselves.",
+    ],
+    fixed: [
+      "Collection cards showed the wrong recipe count (capped at 1) — now a real count. Cards also got a visual refresh (photo collage preview) and collection detail pages now use the same recipe card as the main Recipes page.",
+    ],
+  },
   {
     version: "0.52.1",
     date: "2026-07-19 14:10",