What happened this firing
P0 bootstrap complete. Built and committed the batch-shared robustness scaffold (commit 2f5bdc5e): a schema-contract test that keeps the four bar_close definition files (ClickHouse schema, Rust struct, feature manifest, column comments) in lockstep on column names; a SOTA robustness harness proving causality (no look-ahead), determinism, bit-exact scale-invariance, and crash-safety over the 4 existing columns across BOTH BTCUSDT and ETHUSDT; a dependency-free SHA-256 for tamper-proof golden gates; and a public ETH bar-close loader for the 2-symbol gate. All 8 scaffold tests green, clippy-clean, SCAFFOLD preflight PASS. Next: feature 1 of 8 — bar_categorical_recurrence_rate (price-level stickiness).