New MCP tool `export_pos` wrapping `kicad-cli pcb export pos`: exposes side, format, units, bottom-negate-X, drill-file origin, SMD-only, exclude-through-hole, exclude-DNP and gerber-board-edge. Rich CLI sibling of the existing SWIG-limited export_position_file (left untouched). Self-contained interface handler reading the saved .kicad_pcb. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>