Adds test_detect_vram_preflight_fallback to cover the spec path where
cf-orch is unreachable but scripts.preflight.get_gpus() succeeds,
verifying detect_available_vram_gb() returns the summed total VRAM.
Uses sys.modules injection to simulate the preflight module being present.
Extract generic batch scheduler into circuitforge_core.tasks.scheduler
so any CircuitForge product can use it. Includes VRAM detection via
cf-orch coordinator (cooperative free-VRAM), preflight fallback, and
unlimited fallback; singleton API; full test coverage (12 tests).
- eviction_engine: replace deprecated asyncio.get_event_loop() with
get_running_loop() (Python 3.12 compatibility)
- eviction_engine: remove unused httpx import
- coordinator app: return 422 for unknown node_id instead of silently
falling back to hardcoded localhost URL
- eviction_executor: guard against pid <= 0 to prevent accidental
SIGTERM to process group
- pyproject.toml: move pytest-asyncio to [dev] extras, not [orch]
- profile_registry: document CPU profile exclusion from list_public()
