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/initial/CommitmentRequest.dart

@@ -0,0 +1,58 @@
+/// Create or update a commitment.
+class CommitmentRequest {
+  String? id;
+
+  String type;
+
+  String commitmentClass;
+
+  String title;
+
+  String category;
+
+  String dueStart;
+
+  String dueEnd;
+
+  int estMinutes;
+
+  String energy;
+
+  String proofType;
+
+  int proofTimerMinutes;
+
+  String rrule;
+
+  CommitmentRequest({
+    this.id,
+    this.type = "TASK",
+    this.commitmentClass = "Standard",
+    this.title = "",
+    this.category = "",
+    this.dueStart = "",
+    this.dueEnd = "",
+    this.estMinutes = 0,
+    this.energy = "Medium",
+    this.proofType = "Honour",
+    this.proofTimerMinutes = 0,
+    this.rrule = "",
+  });
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = <String, dynamic>{};
+    data['id'] = id;
+    data['type'] = type;
+    data['commitmentClass'] = commitmentClass;
+    data['title'] = title;
+    data['category'] = category;
+    data['dueStart'] = dueStart;
+    data['dueEnd'] = dueEnd;
+    data['estMinutes'] = estMinutes;
+    data['energy'] = energy;
+    data['proofType'] = proofType;
+    data['proofTimerMinutes'] = proofTimerMinutes;
+    data['rrule'] = rrule;
+    return data;
+  }
+}