e2e integration

[tgoodwin]

• get basic monte carlo scaffolding in place
• add RNG mechanisms to explore.go
• simplify a bit
• ok got monte carlo style process isolation working
• bump trials higher
• check in new beads epic
• move closed-loop planning into core explore
• add text diagram for kamera e2e pipeline
• track overnight throughput campaign metrics plan in beads
• propagate invocation id into phase dumps
• add campaign metrics block to dump schema
• emit phase-local campaign metrics in dumps
• add campaign metrics reporter by invocation
• close campaign metrics beads tasks
• bd: backup 2026-03-04 00:41
• check in findings folder
• bd init: initialize beads issue tracking
• bd: backup 2026-03-04 00:56