Every Dialog/Menu/Popover in the app renders its content via MuiPaper,
which is deliberately kept flat (1px border, no shadow -- Paper is
used too broadly, e.g. as a plain content divider, to safely restyle
globally). That meant every modal (confirm/prompt, AddJobModal,
EditJobDialog, JobDetailsDialog) and every dropdown/Select menu in the
app was still rendering flat-bordered despite every other screen this
session moving to the floating-shadow mockup look.
Added targeted MuiDialog/MuiPopover/MuiMenu paper overrides -- these
win on specificity over MuiPaper's own defaults without touching
MuiPaper itself, so every dialog and dropdown in the app picks up the
rounded floating-shadow treatment from this one change instead of
patching each dialog file individually. Also added MuiChip (full pill
radius, matching every status/skill pill in the mockups) and
MuiTooltip (matching corner radius) overrides, and gave the toast
Snackbar/Alert a consistent radius + weight.