test(map-editor): t11 confirms Edit-menu disable covers Cell-Tile

The existing `disabled = function() return not mode_is("direct")
end` predicate already covers Cell-Tile mode (which is also
non-direct). Self-test t11 enumerates the three transform items
across all three modes and confirms each is disabled in
auto-tile AND cell-tile, enabled only in direct.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

init.lua

@@ -1630,6 +1630,45 @@ local function self_test()
     actions.erase_cell_material_at(5, 5)
     engine.test.equals(maps.get_cell_material(layer, 5, 5), false,
         "t10: erase_cell_material_at clears the flag")
+
+    -- t11: Cycle Rotation / Toggle Flip / Reset Transform are disabled
+    -- in both auto-tile AND cell-tile modes; enabled only in direct.
+    local target_labels = { "Cycle Rotation", "Toggle Flip", "Reset Transform" }
+    for _, label in ipairs(target_labels) do
+        state.set_mode("auto-tile")
+        for _, it in ipairs(ui._EDIT_ITEMS) do
+            if it.label == label then
+                local d = it.disabled
+                local is_disabled = (type(d) == "function") and d() or (d == true)
+                engine.test.equals(is_disabled, true,
+                    "t11: " .. label .. " disabled in auto-tile mode")
+                break
+            end
+        end
+        state.set_mode("cell-tile")
+        for _, it in ipairs(ui._EDIT_ITEMS) do
+            if it.label == label then
+                local d = it.disabled
+                local is_disabled = (type(d) == "function") and d() or (d == true)
+                engine.test.equals(is_disabled, true,
+                    "t11: " .. label .. " disabled in cell-tile mode")
+                break
+            end
+        end
+        state.set_mode("direct")
+        for _, it in ipairs(ui._EDIT_ITEMS) do
+            if it.label == label then
+                local d = it.disabled
+                local is_disabled = (type(d) == "function") and d() or (d == true)
+                engine.test.equals(is_disabled, false,
+                    "t11: " .. label .. " enabled in direct mode")
+                break
+            end
+        end
+    end
+
+    -- t11 teardown: restore auto-tile so we don't leave state in direct
+    state.set_mode("auto-tile")
 end
 
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