Review fixes for Workflow Switches.
- A switch that changes a setting on a node no longer turns that node
off.
- LoRA choices keep every differing field and show row and group locks.
- Odd ids or titles in a saved workflow no longer break loading, and
unsafe group colours are handled.
- The add-choice button appears as soon as a node is selected.
- Copy clones no longer leak redraw timers.
Tests: tests/workflow_switches_frontend.test.mjs and
tests/workflow_switches_regressions.test.mjs, with additions to
tests/workflow_switches.test.mjs.
Not covered: repointing switches inside copied subgraphs. The review
wrote a test for it, but nothing delivers per-subgraph id maps yet, so
that test is left out.
No inputs, outputs or mapping keys change.
ausboss
da3072a7de