[codex] Use generic strategy artifact settings

[Pigbibi]

Summary

• resolve live-pool artifact settings through generic STRATEGY_ARTIFACT_* env names while keeping TREND_POOL_* as compatibility aliases
• expose explicit artifact contract metadata from the CryptoStrategies runtime adapter
• bump crypto-strategies dependency to v0.4.4 and document the platform/strategy artifact boundary

Validation

• PYTHONPATH=.:/home/ubuntu/Projects/QuantPlatformKit/src:/home/ubuntu/Projects/CryptoStrategies/src /home/ubuntu/Projects/UsEquityStrategies/.venv/bin/python -m unittest tests.test_strategy_runtime tests.test_runtime_config_support tests.test_trend_pool_loading -v
• python3 -m compileall strategy_artifact_support.py trend_pool_support.py degraded_mode_support.py runtime_config_support.py strategy_runtime.py scripts tests
• python3 -m ruff check .
• git diff --check

Rollout

After merge, run main.yml manually with validate_only=true before resuming normal live dispatch.