fix: unblock OAuth login + add Solo for artisan serve on :8000
Wrap the Socialite redirect in Inertia::location so the login form's
XHR submit triggers a full browser navigation instead of following the
302 cross-origin into CORS. Install soloterm/solo (pinned to dev-main
until a tagged release supports Laravel 13) with Serve + Vite as
auto-start commands, because revolution/laravel-bluesky hardcodes
http://127.0.0.1:8000/ as the dev OAuth redirect URI.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>