The metadata-grid hover infrastructure shipped but no table entry fed it,
so every cell tooltip the previous version had was silently gone: the
heap-offset/value hints on string and blob columns, the entity description
on token columns, and the per-bit breakdown on flag columns.
Reinstate all of them. FlagsTooltip renders the rich per-bit view (a
checkbox per flag plus the selected member of each mutually exclusive
sub-range) instead of a flat string; GenerateTooltip on the table base
describes what a token column points at; the remaining columns expose
their heap-offset and value hints. MetadataCellTooltip now hands a
FlagsTooltip back as a built control and stringifies everything else.
Assisted-by: Claude:claude-opus-4-8:Claude Code