Add routines module and full goal management

Routines: workout, meditation and must-do routines with timed, rep and
tick steps, sets and rest. A library screen, a builder with templates
and drag-to-reorder steps, and a full-screen player that auto-advances
timed phases, counts backgrounding and logs broken chains as partial.

Goals: a goal editor (deadline, colour, category, default class, archive),
routines linked to goals, and a goal field on tasks and routines. Tasks
added from inside a goal are now actually attached to it via parentId.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KhQh614DMeYoQEH9SoMRUw

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

@@ -1,3 +1,9 @@
+import '../../internal/application/CommitmentClass.dart';
+import '../../internal/application/RoutineKind.dart';
+import '../../internal/application/StepMode.dart';
+import '../../../utils/ObjectConvertors.dart';
+import 'RoutineStep.dart';
+
 /// An ordered sequence where the chain, not the step, is the unit of
 /// completion. Breaking mid-way logs partial.
 class RoutineChain {
@@ -5,6 +11,24 @@ class RoutineChain {
 
   String title;
 
+  /// The goal this routine serves — "Workout" holds "Full body strength".
+  /// Null for a routine that stands on its own.
+  String? goalId;
+
+  RoutineKind kind;
+
+  /// Weight class, exactly as for a commitment — a non-negotiable morning
+  /// routine carries non-negotiable debt when it breaks.
+  CommitmentClass commitmentClass;
+
+  /// 1..7, Monday first. Empty means unscheduled — run on demand only.
+  List<int> days;
+
+  /// Minutes after midnight the routine is due to start; -1 when unset.
+  int startMinute;
+
+  String note;
+
   List<RoutineStep> steps;
 
   /// Index of the step reached when the chain last broke; -1 when clean.
@@ -13,19 +37,30 @@ class RoutineChain {
   RoutineChain({
     this.id,
     this.title = "",
+    this.goalId,
+    this.kind = RoutineKind.Workout,
+    this.commitmentClass = CommitmentClass.Standard,
+    List<int>? days,
+    this.startMinute = -1,
+    this.note = "",
     List<RoutineStep>? steps,
     this.lastBreakIndex = -1,
-  }) : steps = steps ?? <RoutineStep>[];
+  })  : days = days ?? <int>[],
+        steps = steps ?? <RoutineStep>[];
 
   factory RoutineChain.fromJson(Map<String, dynamic> json) {
     return RoutineChain(
       id: json['id'],
       title: json['title'] ?? "",
-      steps: json['steps'] == null
-          ? <RoutineStep>[]
-          : (json['steps'] as List)
-              .map((item) => RoutineStep.fromJson(item))
-              .toList(),
+      goalId: json['goalId'],
+      kind: getRoutineKind(json['kind']),
+      commitmentClass: getCommitmentClass(json['commitmentClass']),
+      days: json['days'] == null
+          ? <int>[]
+          : (json['days'] as List).map((item) => item as int).toList(),
+      startMinute: json['startMinute'] ?? -1,
+      note: json['note'] ?? "",
+      steps: getRoutineStepList(json['steps']),
       lastBreakIndex: json['lastBreakIndex'] ?? -1,
     );
   }
@@ -34,6 +69,12 @@ class RoutineChain {
     final Map<String, dynamic> data = <String, dynamic>{};
     data['id'] = id;
     data['title'] = title;
+    data['goalId'] = goalId;
+    data['kind'] = kind.name;
+    data['commitmentClass'] = commitmentClass.name;
+    data['days'] = days;
+    data['startMinute'] = startMinute;
+    data['note'] = note;
     data['steps'] = steps.map((item) => item.toJson()).toList();
     data['lastBreakIndex'] = lastBreakIndex;
     return data;
@@ -54,44 +95,40 @@ class RoutineChain {
   bool get complete {
     return steps.isNotEmpty && completedSteps == steps.length;
   }
-}
 
-class RoutineStep {
-  String? id;
-
-  String title;
-
-  int order;
-
-  int timerSeconds;
-
-  bool completed;
-
-  RoutineStep({
-    this.id,
-    this.title = "",
-    this.order = 0,
-    this.timerSeconds = 0,
-    this.completed = false,
-  });
-
-  factory RoutineStep.fromJson(Map<String, dynamic> json) {
-    return RoutineStep(
-      id: json['id'],
-      title: json['title'] ?? "",
-      order: json['order'] ?? 0,
-      timerSeconds: json['timerSeconds'] ?? 0,
-      completed: json['completed'] ?? false,
-    );
+  bool get scheduled {
+    return days.isNotEmpty;
   }
 
-  Map<String, dynamic> toJson() {
-    final Map<String, dynamic> data = <String, dynamic>{};
-    data['id'] = id;
-    data['title'] = title;
-    data['order'] = order;
-    data['timerSeconds'] = timerSeconds;
-    data['completed'] = completed;
-    return data;
+  bool scheduledOn(DateTime day) {
+    return days.contains(day.weekday);
+  }
+
+  /// Every set of every step, for the "12 sets" figure.
+  int get totalSets {
+    int total = 0;
+    for (RoutineStep step in steps) {
+      total = total + step.sets;
+    }
+    return total;
+  }
+
+  /// Planned seconds, rest included. Rep and tick steps count their estimate.
+  int get totalSeconds {
+    int total = 0;
+    for (RoutineStep step in steps) {
+      total = total + step.plannedSeconds;
+    }
+    return total;
+  }
+
+  int get timedSteps {
+    return steps.where((step) => step.mode == StepMode.Timed).length;
+  }
+
+  /// A deep copy for the builder, so cancelling an edit leaves the library
+  /// untouched.
+  RoutineChain copy() {
+    return RoutineChain.fromJson(toJson());
   }
 }