- Rename add_schematic_connection → add_schematic_wire with waypoints[] parameter
- Add snapToPins (default true) to snap wire endpoints to nearest pin
- Expose add_schematic_junction as an MCP tool
- Break existing wires at new wire endpoints for T-junction support
- Remove orphaned add_connection / add_wire / get_pin_location from ConnectionManager
- Update tool registry to reflect renamed schematic tools in TS layer
- Add 76 tests for wire/junction handler dispatch, schema validation, and WireManager corner cases
- Apply Black and Prettier formatting to changed files
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>