Relabel misleading "Empresa" header to "Lead ID" in fila table (queue
has no join to leads, cell showed lead_id). Wrap iniciar/pausar/retomar
and aprovar/cancelar selecionados handlers in try/catch with toast on
failure, matching btn-gerar-fila's existing pattern.
The new-campaign segment checkboxes reused .chip/.chips, which is
reserved codebase-wide for click-to-remove selected tags (adds a
trailing " x" and removable-tag hover styling). Give the segment
picker its own segmento-opcao/segmento-lista classes with a minimal
non-removable style instead.