joungmin
8fe6a8f378
- Drift 21 tables (8 catalog + 11 user + habit_dose_variants + meta_kv) with R1~R10 CHECK constraints and 19 indexes - 8 hand-crafted seed JSON catalogs in app/assets/seed/ (refs 84, protocols 34, methodologies 21, frame_patterns 30, reward_menu_items 30, break_protocols 8, common_frames 5, diet_patterns 5) - 6 domain functions: recommend_variant, compute_streak, validate_frame_level, active_habit_quota, weekly_minimum_ratio, seed_importer (transactional, idempotent) - 4 vertical-slice Riverpod screens: HabitList, HabitCreate, CheckIn, Streak - 31 unit tests passing; flutter analyze clean - OQ-5 streak semantics: missing entry ≠ explicit blank (missing = end of history; only TrackerValue.blank triggers Never-miss-twice) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
17 lines
372 B
Dart
17 lines
372 B
Dart
/// Minimal Result sum type. Use for domain operations that may fail.
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sealed class Result<T, E> {
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const Result();
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bool get isOk => this is Ok<T, E>;
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bool get isErr => this is Err<T, E>;
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}
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final class Ok<T, E> extends Result<T, E> {
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final T value;
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const Ok(this.value);
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}
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final class Err<T, E> extends Result<T, E> {
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final E error;
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const Err(this.error);
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}
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