Initial commit: Grounded Flutter frontend

A to-do app that doesn't believe you — an enforcement layer rather than a
neutral ledger.

Architecture ported from Autoreceptives/Frontend/Receptive: stacked MVVM with
the mandatory 4-file screen pattern, one ParentViewModel owning the loading /
network / error overlays and the handleError decision tree, one AppDataManager
gateway, dio comms carrying the three identity headers, secure storage with
random-suffixed keys, and a single-chokepoint Navigator. Package root and Dart
package name are both Grounded; org is nya.

The enforcement engine, one unit per formula in utils/:

- DebtEngine      w(class) x severity(d) x decay(t), sublinear severity so old
                  misses cannot swamp the score; abandonment 2x with 30-day
                  decay immunity; late complete retains 30%
- StandingEngine  Good -> Warned -> Grounded -> Lockdown, derived not set;
                  Grounded replaces home with the overdue queue
- CapacityEngine  blocks over-scheduling against p50 of historically completed
                  minutes, with a learned per-category estimation multiplier
- IntegrityEngine session integrity, weekly volume, plyometric contact ceiling
                  and enforced recovery gaps
- ExcuseAnalyser  on-device excuse clustering plus the confrontation copy
- GuardrailEngine distress detection and rationed amnesty
- ToneEngine      all enforcement copy, so the tone cap lives in one place

CommitmentEvent is append-only and is the source of truth rather than the
status field, which is what makes honest history and excuse analysis possible.

Goals contain commitments via parentId, and a task can be run from a
full-screen runner that derives elapsed time from wall-clock so screen-off
cannot lose time. Backgrounding pauses the clock and is counted. The runner is
mirrored into an ongoing notification, with alarm-class full-screen intents
reserved for non-negotiables.

Design language, fonts, icon and native splash are in place; Mason bricks are
retargeted to this project and verified end-to-end.

flutter analyze lib/ reports no errors.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Mfu2gQLSFN21YRBcU2NrTt

frontend/lib/Grounded/about/external/data/Program.dart

@@ -0,0 +1,66 @@
+/// A training program. Deload weeks are scheduled and enforced — training
+/// through a deload logs as non-compliance, same as skipping.
+class Program {
+  String? id;
+
+  String name;
+
+  int weeks;
+
+  int sessionsPerWeek;
+
+  /// 1-based week indices that are deloads.
+  List<int> deloadWeeks;
+
+  /// Weekly ceiling on plyometric ground contacts. Plyo is the one modality
+  /// where the app stops you rather than pushes you.
+  int weeklyContactCeiling;
+
+  /// Mandatory hours between high-intensity lower-body sessions.
+  int lowerBodyRecoveryHours;
+
+  bool active;
+
+  Program({
+    this.id,
+    this.name = "",
+    this.weeks = 0,
+    this.sessionsPerWeek = 0,
+    List<int>? deloadWeeks,
+    this.weeklyContactCeiling = 0,
+    this.lowerBodyRecoveryHours = 48,
+    this.active = false,
+  }) : deloadWeeks = deloadWeeks ?? <int>[];
+
+  factory Program.fromJson(Map<String, dynamic> json) {
+    return Program(
+      id: json['id'],
+      name: json['name'] ?? "",
+      weeks: json['weeks'] ?? 0,
+      sessionsPerWeek: json['sessionsPerWeek'] ?? 0,
+      deloadWeeks: json['deloadWeeks'] == null
+          ? <int>[]
+          : (json['deloadWeeks'] as List).map((item) => item as int).toList(),
+      weeklyContactCeiling: json['weeklyContactCeiling'] ?? 0,
+      lowerBodyRecoveryHours: json['lowerBodyRecoveryHours'] ?? 48,
+      active: json['active'] ?? false,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = <String, dynamic>{};
+    data['id'] = id;
+    data['name'] = name;
+    data['weeks'] = weeks;
+    data['sessionsPerWeek'] = sessionsPerWeek;
+    data['deloadWeeks'] = deloadWeeks;
+    data['weeklyContactCeiling'] = weeklyContactCeiling;
+    data['lowerBodyRecoveryHours'] = lowerBodyRecoveryHours;
+    data['active'] = active;
+    return data;
+  }
+
+  bool isDeloadWeek(int week) {
+    return deloadWeeks.contains(week);
+  }
+}