Demo: bundle pure src/ modules for the browser (Vite alias) #226

Closed as not planned along with the rest of EPIC #217: the initiative was abandoned after confirming that GitHub's /search/code endpoint doesn't include CORS headers on its actual responses (even on success), which cannot be worked around without a server-side relay — something explicitly out of scope. See #217 for the full root-cause writeup. No code was merged; the local branch for this layer was discarded.