Usage 0.29.10: Invisible housekeeping: menu bar code gets divided up and

Release notes

FEATURE

Invisible housekeeping: menu bar code gets divided up and size limits get enforced

Nothing new appears in the menu bar in this release; the work is behind the wall. menubar.py had grown to 2,485 lines and crossed 2,000 for the third time. Icon and alert helpers now live in menubar_chrome.py, while state constructors moved to menubar_state.py, bringing the original file down to 2,230 lines. Only file-level functions moved: PyObjC, the bridge between Python and macOS Objective-C, connects controls through AppDelegate method names, so moving one would silently break its control. _popover_size was split into a calculation function with a three-line shell left behind, keeping menubar_state.py testable without the ObjC runtime. CI, the automatic check run on changes, now fails a build when a guarded file exceeds its limit; after a cut, lower the limit rather than raising it to pass. CLAUDE.md's module map also shrank from 24 rows to 12, keeping only warnings that are not obvious from opening each module. It is like reorganizing plumbing: no new fixture appears, but later repairs need not keep breaking through a larger wall.

Original changelog

Original changelogInvisible housekeeping: menu bar code gets divided up and size limits get enforced

**Nothing changes on screen in this release — it is housekeeping on the menu bar code.** `menubar.py` had reached 2485 lines, creeping past 2000 for the third time after being split apart twice. The icon and alert helpers moved into a new `menubar_chrome.py`, and the state constructors joined `menubar_state.py`, taking the file down to 2230. Only module-level functions moved: PyObjC binds `AppDelegate` methods by selector name, so relocating one would silently stop the matching control from working. `_popover_size` was split rather than moved, because it ends in `NSMakeSize` and `menubar_state.py` has to stay importable without the ObjC runtime for its projections to be unit-testable — the arithmetic moved as `popover_dimensions()` and a three-line shell stayed behind.
**The growth policy behind that cleanup is now enforced by CI rather than by discipline.** `scripts/check_file_size.py` fails the build when a guarded file passes its ceiling. The rule had been written in CLAUDE.md all along; nothing checked it, and the file grew back twice. Lower a ceiling when a cut lands, never raise it to go green.
**CLAUDE.md's module map lists only modules with a gotcha.** Half its rows restated what opening the file would tell you, and three separate rows repeated the same stdlib-only constraint. It went from 24 rows to 12.