* Tests: Free Transform applies when another tool, layer or New Layer is picked (#5665, #5667)
Whole-app regression tests for the paths #5665 and #5667 report (a moved box, and a placed image moved or untouched; toolbar tool click, Layers panel row click, New Layer). They pass on main, so these issues don't reproduce here; the tests pin Photoshop's behaviour (apply, never silently cancel) while the reporters narrow down their environment.
* New Layer while Free Transform is open applies the transform first (History: the transform, then New Layer; a placed layer's step no longer swallows New Layer); tests: a real placed fixture, the New Layer button, History order
* Free Transform + New Layer: check the command can run before applying the transform; a refused transform keeps the box and the placed layer and returns the refusal
* Free Transform + New Layer: Session::precheck validates the call (params shape, New Layer's values, precondition) before the box is applied
* Free Transform + New Layer: commit-first only for PRECHECKED commands; precheck shares dispatch's admission checks (named-layer precondition, jobs, hidden target) and checks a named layer exists; Group from Layers documents its layer param; test: precheck agrees with execute
* Free Transform + New Layer: precheck resolves a layer given by name as the command does; Layer via Copy/Cut leave PRECHECKED (their failures show only when they run); rebased (lib.rs mod lines)
Tanish Manku