Three fixes:
1. CORS headers on all gateway responses (browser dashboard was
blocked by same-origin policy)
2. Dashboard JS uses window.location.origin instead of hardcoded
localhost:3700 (LAN browsers couldn't reach it)
3. Langfuse tracing wired into every gateway request — api() wrapper
creates spans for each lakehouse call, logGeneration for LLM calls.
Week simulation now produces 34 observations per run visible in
Langfuse UI.
7 traces confirmed in Langfuse after restart. Every /sql, /search,
/vram, /simulation call is tracked with timing + inputs + outputs.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
cd1fda3e21