[codex] Prevent Telegram market symbol auto-links

[Pigbibi]

Summary

• stop Telegram from auto-linking market symbols such as SOXL.US and 00700.HK
• keep real URLs unchanged
• add focused Telegram payload coverage

Validation

• python -m py_compile on touched files
• python -m unittest discover -s tests -p 'test_strategy_plugin_telegram_notifications.py' -v
• git diff --check

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve uppercase URL hosts before breaking symbols

When a notification contains an uppercase host/domain, this pattern still matches the domain token because it runs over the whole message and only excludes adjacent alphanumerics; for example https://EXAMPLE.COM/report is rewritten with U+2060 inside the host. That breaks preservation of real links even though the added test only covers lowercase URLs, so guard URL spans or otherwise avoid substituting domain matches before sending.

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