Send crisis plugin alerts by email

[Pigbibi]

Summary

• load shared strategy plugin signal artifacts in the Firstrade strategy cycle and attach their report/Telegram lines
• send independent SMTP email alerts for escalated plugin signals via CRISIS_ALERT_* settings
• sync crisis alert env vars in Cloud Run deployment and pin QPK/UES to the shared alert-helper commits

Tests

• timeout 240s env PYTEST_DISABLE_PLUGIN_AUTOLOAD=1 .venv/bin/python -m pytest -q tests/test_rebalance_service.py tests/test_runtime_config_support.py tests/test_sync_cloud_run_env_workflow.py
• timeout 240s env PYTEST_DISABLE_PLUGIN_AUTOLOAD=1 .venv/bin/python -m pytest -q
• /home/ubuntu/Projects/TelegramCodexBot/.venv/bin/ruff check .