docs: Mark Phase 7 tasks as complete in runner refactor plan

All phases of the runner refactor are now complete:
- Phase 1: TriggerRunner component extracted
- Phase 2: RunnerState enum defined
- Phase 3: State machine refactor completed
- Phase 4: Pipeline stages extracted as methods
- Phase 5: Error handling consolidated
- Phase 6: BlockStateCheckpoint added
- Phase 7: Module organization completed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: lutter

docs/plans/runner-refactor.md

@@ -265,12 +265,12 @@ Each phase is complete when:
 
 ### Phase 7: Module Organization
 
-- [ ] Create `runner/` directory
-- [ ] Move `state.rs`, `pipeline.rs`, `trigger_runner.rs` into it
-- [ ] Update `runner.rs` to re-export from module
-- [ ] Update imports in dependent files
-- [ ] Verify tests pass
-- [ ] `just lint` shows zero warnings
+- [x] Create `runner_components/` directory (named to avoid conflict with `runner.rs`)
+- [x] Move `state.rs`, `trigger_runner.rs` into it (pipeline.rs was not created as stages are methods)
+- [x] Create `runner_components/mod.rs` with re-exports
+- [x] Update imports in `runner.rs` to use the new module path
+- [x] Verify tests pass
+- [x] `just lint` shows zero warnings
 
 ## Notes