Rewrites python_pkg.diet_guard imports to diet_guard, vendors the
shared as_float coercion helper, drops the monorepo PYTHONPATH from
install.sh and the systemd unit (package is now pip-installed), and
scaffolds standalone lint/test config matching testsAndMisc's real
enforced bar (pylint --fail-under=10 with tests excluded and the
use-implicit-booleaness/consider-using-with disables, mypy's actual
disabled-error-code set, ruff ALL, bandit, 100% branch coverage).
test_demo_opens_window and test_bare_gate_due_opens_window never mocked
wait_for_display(), so they silently relied on a real, reachable X
display being present. On a dev machine this is always true, so they
passed; on a true headless CI runner (no X server at all) each test
blocked for the real 60s timeout before failing, explaining the CI
run's 131s duration. Mocking it to True (matching the existing
test_gate_due_but_display_not_ready_defers pattern for the False case)
restores hermeticity with no production code change.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A7vbgtFfZmfxJtN5DdtJky
Add the diet_guard package: a screen-locking meal-logging gate that fires
on 4-hour slots (08/12/16/20) and records calories/macros, persisting an
autocompleting food bank.
- Trigger fix: the systemd timer fires at session start (Persistent=true)
before lightdm has written ~/.Xauthority, so the gate crashed with a
TclError instead of locking the screen. Add wait_for_display() /
_display_is_ready() in _gatelock.py and wire it into _cli._cmd_gate so the
gate retries on the next tick instead of crashing; add
Environment=XAUTHORITY=%h/.Xauthority to the service as belt-and-suspenders.
- Food-bank hardening: a transiently corrupt food_bank.json was warned about
on every keystroke and then silently overwritten (data loss). _read_bank
now quarantines it via _quarantine_corrupt_bank() (warn-once + timestamped
backup) before starting fresh.
- Multi-item meals: new _meal.py (MealItem, meal_total, MEAL_SOURCE),
remember_meal() + _upsert() in _foodbank.py, and a "+ Add item" control in
the gate that logs both the individual items and the composite meal.
- Bundle resolve_nutrition's manual macros into a ManualMacros dataclass to
stay within the argument-count limit.
diet_guard at 100% branch coverage; full pre-commit suite passes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
