Add Audit logs to client management flows

Description: We should add audit logging to all client-related flows to improve observability and traceability. This will help us monitor client actions, detect anomalies, and assist with debugging and compliance.

Tasks:

• Identify key client flows that require audit logging
• Add audit log entries for relevant events (e.g., login, logout, permission changes, config updates)
• Ensure logs include useful context (user ID, timestamp, IP, action, result, etc.)
• Update documentation if needed

Acceptance Criteria:

• Audit logs are generated for all major client flow actions
• Logs include enough detail to be useful for debugging and auditing
• Logging has minimal performance impact