5.8 Add logging for automatic trusted sessions #347

Parent epic: #311

Summary

Log trusted-session invitation and automatic action events locally.

Requirements

• Log invitation received, accepted, rejected, auto-accepted, join success, join failure, requested mode, issuer client, session ID, and profile when present.
• Avoid logging sensitive session credentials.
• Keep messages clear enough for support and troubleshooting.

Acceptance criteria

• Automatic trusted-session actions are traceable.
• Logs do not expose session passwords or decrypted sensitive payloads.