all: Fix build after rebase on master

- Use q::Pos::default() instead of Pos::default() in api.rs
- Add log_store field to Config constructors in tests
- Pass NoOpLogStore to GraphQlRunner in gnd test runner
- Update Cargo.lock

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: fordN