🛡️ Sentinel: Hardened agents/galyarder-cmo.md Security Protocol

[muhamadgalihsaputra]

Removed run_shell_command from the tool allowlist of galyarder-cmo.md and its mirrored versions in the integrations directory, enforcing the Least Privilege principle for marketing personas.

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PR created automatically by Jules for task 1968071473074209232 started by @GalihRensuke

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