feat(review): View prompt + Call 2 declared attrs, Create-desc gate

Shared assemble_call2 for GET .../call2/prompt and POST call2 (seed +
DECLARED ATTRIBUTES + dimension fact + brand/geo; photo slots without
base64). Create desc disabled until content LLM + title/short + species +
wood cats/primary + edge + ≥1 figure + grade + moisture + price; show
missing. figure_term_ids required for ready. Moisture defaults to Kiln
dried (kd). Pin snl / liveedge in wood-cat UI. Ready-on-change via
MultiSelect onCommit.

backend/tests/test_review.py

@@ -194,3 +194,29 @@ def test_review_persists_owner_overrides(env):
     assert got["sku"] == "SLAB-99"
     # server_rev was incremented (the UPDATE fired).
     assert got["server_rev"] == 2
+
+
+def test_ready_requires_figure_term_ids(env):
+    """UX requires ≥1 figure — figure_term_ids is in _REQUIRED."""
+    from backend.review import missing_required, compute_ready
+
+    slab = _slab(figure_term_ids=[])
+    miss = missing_required(slab)
+    assert "figure_term_ids" in miss
+    ready, missing = compute_ready({**slab, "price": 1.0, "price_source": "manual",
+                                    "title": "T", "short_description": "S",
+                                    "edge_type_term_id": 1, "grade_term_id": 1,
+                                    "thickness_term_id": 1, "moisture_term_id": 1})
+    assert ready is False
+    assert "figure_term_ids" in missing
+
+    ready2, missing2 = compute_ready({
+        **slab,
+        "figure_term_ids": [1],
+        "price": 1.0, "price_source": "manual",
+        "title": "T", "short_description": "S",
+        "edge_type_term_id": 1, "grade_term_id": 1,
+        "thickness_term_id": 1, "moisture_term_id": 1,
+    })
+    # May still miss other fields depending on fixture; figure must not be listed
+    assert "figure_term_ids" not in missing2