feat: merge people search into the recipe search bar on Explore

People search existed but was buried in its own tab with no entry
point from anywhere else — easy to conclude it "doesn't work" since
nobody would find it. Now one query on Explore hits both
/api/v1/search and /api/v1/users/search and renders People/Recipes
sections together; the standalone people tab and its now-dead
PeopleSearch component are gone.

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 = "0.12.1";
+export const APP_VERSION = "0.13.0";
 
 export type ChangelogEntry = {
   version: string;
@@ -11,6 +11,13 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.13.0",
+    date: "2026-07-13 15:37",
+    added: [
+      "**Explore search now finds people and recipes together**: one search bar, one query — no more separate, hard-to-find people tab.",
+    ],
+  },
   {
     version: "0.12.1",
     date: "2026-07-13 13:25",