refactor(examples): Update examples for v3.2.0 compatibility

- Remove redundant examples:
  - Deleted 01_basic_client_connection_v3.py (duplicate)
  - Deleted 06_multi_timeframe_strategy.py (superseded)

- Renumber examples to eliminate duplicates:
  - 12_simplified_strategy.py → 13_simplified_strategy.py
  - 13_enhanced_models.py → 14_enhanced_models.py
  - 15_risk_management.py → 16_risk_management.py
  - 16_join_orders.py → 17_join_orders.py
  - 16_managed_trades.py → 18_managed_trades.py
  - 16_risk_manager_live_demo.py → 19_risk_manager_live_demo.py

- Update README.md:
  - Version updated to v3.2.0
  - Document new type safety features
  - Reorganize examples into Core and Advanced sections
  - Update learning path recommendations
  - Clarify which examples place real orders

All examples now properly numbered (00-19) and compatible with v3.2.0 APIs

🤖 Generated with Claude Code

Co-Authored-By: Claude <[email protected]>

Author: TexasCoding