Break the decay forever-loop, and stop /why quoting a 4-day-old cause (#153)

Make it trade: the blackout, the free flash loan, the noise, and the pipeline (#136)

Measure decay, not the loan cap: the /decay numbers were a size artifact

/decay: report the recent slice, so a fix is visible before the p90 catches up

decay_tracker: reload samples at startup so restarts don't reset the estimator

Fix the 14-of-14 pruning outage; measure edge decay; public site for bot.elghaly.dev