fix: change users.id and FK columns from uuid to text for Better-Auth compatibility
Better-Auth generates nanoid-style text IDs (e.g. pGud2ln2WAFHC0KYjBVKR4Rc7mM8OcTI),
but the users table used PostgreSQL uuid type, causing registration failures:
ERROR: invalid input syntax for type uuid: "pGud2ln2WAFHC0KYjBVKR4Rc7mM8OcTI"
Changes:
- User.id: removed UUIDPrimaryKeyMixin, use explicit text PK
- UserStoreAccount.user_id: Mapped[uuid.UUID] -> Mapped[str]
- Purchase.user_id: Mapped[uuid.UUID] -> Mapped[str]
- UserResponse schema: id field from UUID -> str
- New Alembic migration 004_fix_user_id_text: drops FKs, alters column
types, re-adds FKs (using id::text cast)
Co-Authored-By: Paperclip <noreply@paperclip.ing>
Stockboy Steve
a1d53f8e47