feat: admin panel improvements (v0.34.0)

- Signups toggle was inverted (on = disabled) — flipped so on means
  open, matching how every other on/off toggle in the app reads.
- Moved AI provider keys and default-model settings from Site
  Settings to AI Config, so all AI setup lives in one place instead
  of split across two pages with a cross-link.
- Admin overview: added new users/recipes (7d), recipes cooked (7d),
  pending reports (linked, highlighted if > 0), storage used this
  month, active webhooks, and API keys issued — previously just 4
  lifetime totals.

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 = "0.33.1";
+export const APP_VERSION = "0.34.0";
 
 export type ChangelogEntry = {
   version: string;
@@ -11,6 +11,17 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.34.0",
+    date: "2026-07-14 18:05",
+    added: [
+      "Admin overview now shows growth (new users/recipes this week), engagement (recipes cooked this week), a moderation queue count, storage used, and platform-integration counts (webhooks, API keys) — not just totals.",
+    ],
+    fixed: [
+      "The admin Signups toggle was inverted — switching it \"on\" used to disable signups. It now reads naturally: on means open.",
+      "AI provider keys and default-model settings have moved from Site Settings to AI Config, alongside the rest of the AI setup.",
+    ],
+  },
   {
     version: "0.33.1",
     date: "2026-07-14 17:45",