Code review caught that the tab panels never hid.
Each panel was a `<Stack hidden={activeTab !== key}>`. The `hidden`
attribute reaches the DOM, but the only rule acting on it is the user
agent's `[hidden] { display: none }`, and MUI's Stack sets
`display: flex` in an author-level emotion class
(@mui/system/Stack/createStack.js:70). Author origin beats user agent
regardless of specificity, so every panel stayed visible: all five tabs
rendered stacked down the page and clicking a tab changed nothing.
Panels are now conditionally rendered, matching Pages/Account. This also
fixes a second defect: BasePage wraps children in `Stack spacing`, whose
sibling selector keys on DOM position rather than visibility, so the four
empty panels a non-admin never sees still collected a margin-top each and
left four blank gaps below "About".
My commit message for the previous commit argued panels had to stay
mounted or a partial tree would compute a stale `isValid` and lock
saving. That was wrong. No Form*Field passes `shouldUnregister`, and
react-hook-form defaults it to false, so unmounting a panel preserves its
values and validation state.
Also moves the tab-reveal off `onError`, which was unreachable: the save
button is `disabled={!isValid}` under `mode: "onChange"`, so
handleSubmit's error branch never fires. The validation Alert renders
straight from `formState.errors`, so a field on a hidden tab could be
named with no way to reach it. Each field in the Alert is now a button
that switches to its own tab.
Claude-Session: https://claude.ai/code/session_01AbYLvwpEaZFXktHVcqrFRd
This directory contains the client side (frontend) of Checkmate.