Give the watch workout screen entirely to the up/down timer

The half-and-half split (paged timer over the looping form-guide figure)
is now iPhone-only. On the watch the ExerciseProgressView TabView fills the
whole screen — the figure slot is gone from both the active flow and the
Completed state, and the ExerciseFigure sources and ExerciseMotions
resources are dropped from the watch target since nothing there uses them.

Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3

project.yml

@@ -111,11 +111,6 @@ targets:
         excludes:
           - "Resources/Info-*.plist"
           - "Resources/*.entitlements"
-      # The form-guide figure renderer and its bundled motion rigs are shared
-      # with the iOS app (which includes them via the whole `Workouts` folder).
-      - path: Workouts/ExerciseFigure
-      - path: Workouts/Resources/ExerciseMotions
-        buildPhase: resources
     dependencies:
       - package: IndieSync
       - target: Workouts Watch Widget