Enhanced Deactivation Detection

[vanshb03]

Current State:

• System only checks if role.active changed from true to false
• Simple binary active/inactive status
• No timestamp tracking beyond posting date
• Single-check deactivation

Success Criteria:

• Add timestamps for when positions are marked inactive
• Store active duration in previous_data.json
• Implement multi-step verification (minimum 2 checks) before marking inactive
• Include duration the position was active in deactivation messages
• Track failed verification attempts in previous_data.json