When new users register with trial subscription enabled, the subscription
link fails to connect in Clash clients. This is caused by missing cache
invalidation after transaction commit.
Changes:
- Add cache clearing after successful trial subscription creation
- Clear user subscription cache, subscription details cache, and server cache
- Modify activeTrial functions to return subscription object for cache clearing
- Apply fix to all registration methods: email, phone, device, and OAuth
This ensures subscription links work immediately after registration without
requiring manual subscription reset.
greatsage
5f1a546bbe