chore: add changeset for PowerSync add-on (#448)

chore: add changeset for PowerSync add-on (#407)

Minor bump for @tanstack/cli and @tanstack/create to release the
React PowerSync scaffolding add-on merged in 8f24af5.

Author: tannerlinsley

.changeset/powersync-addon.md

@@ -0,0 +1,24 @@
+---
+'@tanstack/cli': minor
+'@tanstack/create': minor
+---
+
+feat(create): add React PowerSync scaffolding add-on
+
+`tanstack add powersync` (or `--add-ons powersync` on `tanstack create`)
+wires the PowerSync Web SDK into a React TanStack Start app:
+
+- `@powersync/web` + `@powersync/react` + `@journeyapps/wa-sqlite`
+  dependencies and a Vite plugin that excludes `@powersync/web` from
+  `optimizeDeps` and emits ES-module workers (required for the
+  WA-SQLite VFS).
+- A `PowerSyncProvider` integration that opens a WA-SQLite database
+  and connects with `disableSSRWarning` so SSR doesn't warn.
+- A sample `AppSchema` (todos table) and `BackendConnector` with
+  `fetchCredentials` reading `VITE_POWERSYNC_URL` / `VITE_POWERSYNC_TOKEN`
+  from `.env.local` and a stubbed `uploadData()` ready for the user's
+  upstream write logic.
+- A `/demo/powersync` route that inserts rows locally and renders
+  live `useQuery` results plus connection status, so the scaffold
+  works zero-config and shows the SDK is wired up before any
+  PowerSync instance is configured.