Make the tesserae serve sessions page live: a new origin-gated /api/sessions endpoint scans the Claude Code harness roots on the fly and renders currently-active sessions above the compiled table, and the fast transcript-search box merges fresh live hits ahead of the memex index. The live scan is Claude-only (sub-second, directory-scoped); codex stays served from the index and the compiled projection. tesserae summary and tesserae decisions gain a --max-turns flag to cap turns read per session. The page degrades cleanly to compiled content on static hosting. Additive, drop-in over v0.15.x.