Milestone 3. Server part proxies /prodcom/* (SSE passthrough included) to
the admin-configured ProdCom URL, adding the Bearer key server-side so it
never reaches browsers; reports proxy health for the admin page. Client
ports the prodcom-listener UI into the module contract: history load,
live SSE with in-place updates of in-progress speech, channel colors,
channel visibility toggles + group presets (persisted per tile), hard
channel filter / text size / timestamps as instance settings, auto-scroll
with a jump-to-latest pill. tools/prodcom-mock.js simulates ProdCom
(word-by-word in-progress speech) for testing; verified against it,
including kill-and-restart recovery.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RNYUv9EyrGSFmCnmH7WYKH
