# Documentation Pass Summary

This archive is the same starter Dart scheduling core with expanded inline documentation added to the code files under `lib/`.

## What changed

- Added file-level reading guides to each Dart file.
- Expanded class, enum, field, getter, method, and helper documentation.
- Added inline comments in the scheduling engine to explain validation, placement planning, and application flow.
- Documented how core concepts are meant to be used by UI, persistence, tests, and future planner features.

## Files documented

- `lib/scheduler_core.dart`
- `lib/src/models.dart`
- `lib/src/backlog.dart`
- `lib/src/locked_time.dart`
- `lib/src/quick_capture.dart`
- `lib/src/scheduling_engine.dart`
- `lib/src/task_actions.dart`
- `lib/src/task_statistics.dart`

## Behavior check

Only comments and documentation text were added to the Dart files. A comparison that strips comments and blank lines reports the non-comment code as unchanged from the uploaded archive.

`dart format` was not run because the Dart SDK is not installed in this execution environment. The comments were inserted to preserve the existing formatting style as closely as possible.