feat(agent): add Grok Build TUI adapter, runtime dispatch, and skill support

.agents/skills/multi-agent-mux-resume/scripts/resume_session.sh

@@ -109,6 +109,7 @@ if [ -z "$CMD_FULL" ]; then
     agy)    CMD_FULL="${RESOLVED_BIN} --dangerously-skip-permissions --conversation $UUID" ;;
     hermes) CMD_FULL="${RESOLVED_BIN} --resume $UUID" ;;
     cline)  CMD_FULL="${RESOLVED_BIN} -i --id $UUID" ;;
+    grok)   CMD_FULL="${RESOLVED_BIN} --resume $UUID --permission-mode bypassPermissions" ;;
     *)      echo "ERROR: unsupported agent: $AGENT" >&2; exit 2 ;;
   esac
 fi