• Bulk tag editor for multi-host tagging
• Select hosts with Space (or Ctrl+Space), press t to open the bulk tag overlay. Tri-state checkboxes: [x] add to all, [ ] remove from all, [~] leave as-is. Space cycles through all three states
• Press + to add a brand-new tag. Enter applies, Esc cancels. u undoes the entire operation in one keystroke
• Plain Space now toggles host selection (Ctrl+Space still works). Esc clears the selection
• Footer shows bulk actions (t bulk tag, r run, Esc clear, ? help) when hosts are selected
• Include-file hosts are detected and skipped with a visible warning. Mixed-state rows show a "mixed" label for accessibility on NO_COLOR terminals
• Closes #15