Status check + finish. The schematic has components placed and you were mid 'Mutating pins for power' but the response loop hung for hours. Work is autosaved. Do NOT restart from scratch. In ONE deterministic short pass (target 60s, skip that net and continue. We will export Gerbers right after your summary.

STOP the previous routing run. Single deterministic pass, budget <=4 ACUs, NO review loops. PLACEMENT-ONLY task: (1) Move ALL existing components inside the 200mm x 150mm board outline (the green Layout rectangle). Do not delete or recreate any component - just relocate. (2) Auto-place by functional zones: power input + buck + LDO at LEFT edge, STM32G474 MCU + 8MHz crystal + SWD header at CENTER, 10x ISO1410B RS-485 isolators + RS-485 connectors at RIGHT edge stacked vertically, W5500 Ethernet + RJ45 + CAN-FD at TOP edge, 4x opto-interlocks + 4x relays at BOTTOM edge, 4x WS2812 status LEDs + buzzer at TOP-RIGHT corner. (3) Maintain 8mm creepage on RS-485 and opto-isolator barriers. (4) Add 4x M3 mounting holes at corners + 3 fiducials. (5) DO NOT route traces. DO NOT add copper pours. DO NOT run DRC iteration loops. PLACEMENT ONLY. (6) When all components are inside the outline and in their zones, STOP and reply with a one-line summary: component count placed, zones populated, ready for routing handoff to Lion Circuits.