- Fix _read_group override crash (dict_values not subscriptable) in sale_order.py
- Migrate _fc_tool_claims_stats from deprecated read_group() to _read_group() API
- Enrich client details tool with funding history, invoice status, prev-funded devices
- Add Client Status Lookup tool (search by name, returns orders/invoices/next steps)
- Add ADP Billing Period tool (invoiced amounts, paid/unpaid, submission deadlines)
- Update AI agent system prompt with all 5 tools and usage examples
