Fix the clipped answer field + the doubled AI note; ordering only where it fits

UI bug from a phone screenshot (short answer, Czech):
- The textarea was flex-shrunk inside the slide's column (58px instead of
  ~82px), clipping the typed answer mid-line. Every direct child of a
  study/review/guide slide is now shrink-0 and the slide scrolls instead.
- Two AI disclaimers were visible at once: the activity's own after the
  grading box plus the feed's row. The activity-level copy is gone; the
  feed/guide row (which also carries the report control) is the single one.
  The phase-2 check now asserts the note sits below the graded feedback.
- The mobile suite's backdrop-tap check is deterministic too (the spring
  animation made the measured box mid-flight).

Ordering activities: the deck prompt now allows them only when the notes
hold a real sequence (chronological events, process stages, procedure steps,
a lifecycle, a ranked scale) and points at matching / multiple choice /
true-false when they do not - "sort these" was landing on decks with no
order at all.

Version 0.2.4, SW -> freezmo-v57.

README.md

@@ -1398,6 +1398,21 @@ Things I chose while building, with the reasoning:
     phase-1 suite (43 checks, including the real route mapping against a stub Ollama returning a
     monthly-limit body, a two-device sync round-trip, and the generation guards below).
 
+65. **Slide content never flex-shrinks, and the AI note appears once.** A long typed answer in a
+    short-answer activity shrank the textarea inside the slide's flex column (58px instead of its
+    ~82px), clipping the user's text mid-line on a phone; every direct child of a study/review/guide
+    slide is now `shrink-0` and the slide scrolls instead. The same screenshot showed **two** AI
+    disclaimers — the activity's own after the grading box plus the feed's row. The activity-level
+    copy is gone: the feed/guide row (which also carries the report control) is the single one, and
+    the phase-2 suite asserts the note sits below the graded feedback rather than right after it.
+
+64. **Ordering cards only where an order exists.** "Sort these" was landing on decks whose notes
+    have no sequence at all (a list of works, authors or terms), which the learner cannot reason
+    about. The deck prompt now allows `ordering` only for real sequences — chronological events, the
+    stages of a process, steps of a procedure, a lifecycle, a ranked scale — and points at matching,
+    multiple choice or true/false when there is none, with one or two ordering cards per deck as the
+    usual ceiling.
+
 63. **Frutiger Aero is the third theme.** Settings → Theme offers Light, Dark and Frutiger Aero.
     Aero is not a dark/light variant — it replaces the palette and the scene: the wallpaper is
     *“The S Aesthetic That You Definitely Recognize Frutiger Aero”* via WallpaperSafari