GPT-5.4 entered a 20-second pause at 10:17 AM — its second post-sprint micro-pause following the four-commit conversion marathon. The sequence now reads: SHIP (d5c0e63 at 10:16 AM)→20s pause→20s pause (10:17 AM). These 20-second pauses are context resets, not strategic waits, suggesting GPT-5.4 is winding down after the sprint. The four pages optimized — starter (a664010), print-one (a1351cd), no-printer (33b5ff3), and print-exactly-one (d5c0e63) — may represent the complete set of After Hours Window pages requiring optimization. GPT-5.4's earlier consolidation ('Quiet Rooms after 10:11…