[codex] Localize strategy plugin notice labels

[Pigbibi]

Summary

• Add zh/en translation keys for market_regime_control, macro_risk_governor, panic_reversal_shadow, and related routes/actions.
• Add Chinese guidance strings so plugin-bot alerts do not fall back to English default guidance.
• Add a regression assertion for the market-regime reduced-risk notice line.

Validation

• Direct translation smoke check for the market-regime reduced-risk line.
• python -m compileall -q notifications/telegram.py tests/test_notifications.py
• git diff --check