Incrementally build aio example zips and live examples

Editor assessment

The `build(bazel)` combination and imperative subject work well, and "incrementally build aio example zips and live examples" conveys the improvement clearly. The body, however, is thin: "The existing scripts were amended to work on one example at a time" describes the mechanism but not the payoff — presumably faster iteration and less redundant work — nor any caveat about correctness. One more sentence on why incremental behavior matters would have elevated this from adequate to genuinely helpful for future maintainers.