loadSession() in logic_pipeline.js was called unconditionally on page
load, causing a 404 fetch and alert("Load Error: Session not found")
for new/empty sessions. Guard the call to only run when fullManifest
has items, letting init() in logic_init.js handle empty sessions via
showSessionLandingIfEmpty().
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>