Rename crisis alert config to email

[Pigbibi]

Summary

• switch crisis alert notification config from CRISIS_ALERT_GOOGLE_VOICE_* to CRISIS_ALERT_EMAIL_*
• update runtime settings, QPK imports, report fields, workflow env sync, docs, and .env.example
• keep old CRISIS_ALERT_GOOGLE_VOICE_* names only as Cloud Run cleanup targets
• update QuantPlatformKit and UsEquityStrategies pins

Tests

• PYTHONPATH=/home/ubuntu/Projects/QuantPlatformKit/src:/home/ubuntu/Projects/UsEquityStrategies/src:. .venv/bin/python -m pytest tests/test_runtime_config_support.py tests/test_rebalance_service.py tests/test_sync_cloud_run_env_workflow.py

Note: local Firstrade venv does not include ruff; CI covers lint.