Add Progress over time and a targets and reminders setup

Progress gives a Day/Week/Month view of routines held against a weekly
target, compared with the same point of the previous period, with active
time and the daily streak. Targets & reminders sets routines and minutes
per week and schedules a heads-up before each routine. The runner's summary
now shows today's held count and streak. Finished runs are mirrored to a
device run log that feeds both.

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

frontend/lib/Grounded/about/internal/application/ProgressPeriod.dart

@@ -0,0 +1,13 @@
+/// The span the Progress screen measures.
+enum ProgressPeriod { Day, Week, Month }
+
+String periodLabel(ProgressPeriod value) {
+  switch (value) {
+    case ProgressPeriod.Day:
+      return "Day";
+    case ProgressPeriod.Week:
+      return "Week";
+    case ProgressPeriod.Month:
+      return "Month";
+  }
+}