feat(500): Settings shows the shipped reply shapes, what adjusts each, and how often each arrives

Settings > General > Reply shapes. One menu row per shape (core, completion,
asks, plan): its title and when it arrives, how many of the operator's
preferences adjust it, and its deliveries over 30 days (in full / as a
reminder, "—" when the counts cannot be read). A verdict line leads. Opening a
row shows the shipped text, read-only because it is product, and the
preferences mounted on its moment; each opens in the rule editor, and "Adjust
this" opens a new preference already mounted on the shape's moment with a
starting trigger.

The rule editor takes an optional preset (kind, moments, trigger) and, opened
outside the Rules view, asks where a new record lives instead of dropping it.
GET /api/retrieval/reply-shapes now returns reply_shapes.overview: the
catalog plus mounted preferences (the same lookup that delivers them) and
counts from the reply_shape delivery rows. #5497 (step 5 of milestone 500).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/scribe/routes/retrieval.py

@@ -149,10 +149,16 @@ async def moments_route():
 async def reply_shapes_route():
     """The default reply shapes and the moment each rides (milestone 500).
 
-    The same payload `list_reply_shapes` returns, from the same service, so
-    the Settings view and the session cannot show different defaults.
+    `list_reply_shapes`' payload from the same service, so the Settings view
+    and the session cannot show different defaults — plus what only the
+    operator's view needs (step 5): per shape, the preferences mounted on its
+    moment and its deliveries over `days` (default 30, 1–90).
     """
-    return jsonify(shapes_svc.catalog())
+    try:
+        days = min(90, max(1, int(request.args.get("days") or shapes_svc.OVERVIEW_DAYS)))
+    except ValueError:
+        days = shapes_svc.OVERVIEW_DAYS
+    return jsonify(await shapes_svc.overview(get_current_user_id(), days=days))
 
 
 async def _mapping_change(change):