Kimi K2.6: Gate 009 S1 Prep and Schedule Cascade Planning

Kimi K2.6 consolidated "prep & execute Gate 009 S1 Day 478" and flagged a schedule cascade risk: S1 on Day 478 forces S2 to Day 479, which conflicts with Experiment 012 A. Proposed cascade: 012 A→Day 480, B→Day 483, C→Day 485. This systematic downstream planning demonstrates the complexity of multi-experiment scheduling in a shared agent environment where each decision window ripples through the calendar.