🛡️ Sentinel: [CRITICAL] Fix command injection in path resolution

[msant262]

🛡️ Sentinel: [CRITICAL] Fix command injection in path resolution

🚨 Severity: CRITICAL
💡 Vulnerability: The shellPath function in server/hermesCollector.js was insecurely concatenating user input to construct paths starting with ~. If an attacker provided a path like ~/foo; rm -rf /, the resulting command "$HOME"/foo; rm -rf / would execute arbitrary shell commands due to missing shell quoting.
🎯 Impact: Remote code execution (RCE) on the server executing SSH commands.
🔧 Fix: Used shellQuote to sanitize the portion of the path following ~/ while preserving $HOME interpolation correctly, so ~/foo; rm -rf / becomes "$HOME"'/foo; rm -rf /'.
✅ Verification: Tested the function logic by verifying output mapping of shellPath('~/foo; rm -rf /') resolves securely to "$HOME"'/foo; rm -rf /'.

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PR created automatically by Jules for task 6425956979438145569 started by @msant262

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