dave
adf936be07
refactor: split http/workflow/story_ops.rs (1256) into create + criterion + update
The 1256-line story_ops.rs is split:
- create.rs: create_story_file + tests (~232 lines)
- criterion.rs: check/add/remove/edit_criterion_in_file + tests (~525 lines)
- update.rs: update_story_in_file + yaml helpers + tests (~640 lines)
- mod.rs: re-exports (~12 lines)
Workflow helpers (read_story_content, write_story_content, slugify_name, etc.)
bumped from pub(super) to pub(crate) since they're now consumed across nested
sub-modules and from http/mcp/story_tools/.
Tests stay co-located. All 2636 tests pass; clippy clean.