Reorganize the project form for a lighter, more professional flow without
touching field names or the save action (all data preserved):
- LocaleInputs: drop the per-locale card wrappers for a tight 3-column
labelled grid; shorter textareas.
- Sections and Assets: collapse each item into an accordion (closed by
default) and show a proper empty state when there are none.
- Slim the header to badges + title + a compact progress indicator instead
of a stats grid; drop the assets stats sidebar.
- Tighten section paddings/spacing (lg -> md) throughout.
All 375 tests pass; tsc and eslint clean.
moh
2f8fd66812