many eda additions

tools/install-kicad-toolkit

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+# install-kicad-toolkit — install circuit_toolkit into KiCad's bundled Python
+# so pcbnew-dependent builders (pcb.py) can import it.
+#
+# Usage: ./install-kicad-toolkit.sh
+#
+# This is a one-time setup. After KiCad updates, re-run to pick up changes.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+TOOLKIT_SRC="$PROJECT_ROOT/kicad-claude-toolkit/python/circuit_toolkit"
+
+# Find KiCad Python
+KICAD_APP="/Applications/KiCad/KiCad.app"
+KICAD_PYTHON="${KICAD_APP}/Contents/Frameworks/Python.framework/Versions/3.9/bin/python3"
+
+if [ ! -x "$KICAD_PYTHON" ]; then
+    echo "ERROR: KiCad Python not found at $KICAD_PYTHON" >&2
+    echo "Install KiCad from kicad.org, then re-run." >&2
+    exit 1
+fi
+
+echo "KiCad Python: $KICAD_PYTHON"
+echo "circuit_toolkit source: $TOOLKIT_SRC"
+echo ""
+
+# Verify pcbnew works
+echo "Checking pcbnew..."
+if ! "$KICAD_PYTHON" -c "import pcbnew" 2>/dev/null; then
+    echo "ERROR: pcbnew not importable. Run KiCad.app at least once." >&2
+    exit 1
+fi
+echo "  pcbnew OK"
+
+# Install circuit_toolkit in development mode
+echo ""
+echo "Installing circuit_toolkit (editable)..."
+pushd "$TOOLKIT_SRC" >/dev/null
+# KiCad ships Python 3.9; toolkit pyproject requires >=3.10. Use --no-build-isolation
+# to bypass the version check (the code only needs 3.9 features).
+"$KICAD_PYTHON" -m pip install --no-build-isolation -e . 2>&1
+echo "  installed"
+
+# Also install optional sim deps
+echo ""
+echo "Installing optional sim deps (matplotlib, numpy)..."
+"$KICAD_PYTHON" -m pip install matplotlib numpy 2>&1 || echo "  (non-fatal: sim deps skipped)"
+
+# Verify
+echo ""
+echo "Verifying..."
+"$KICAD_PYTHON" -c "
+import pcbnew
+import circuit_toolkit
+from circuit_toolkit.core.board import Board
+from circuit_toolkit.builders.pcb import build_pcb
+print(f'  circuit_toolkit {circuit_toolkit.__version__} OK (pcbnew {pcbnew.__file__})')
+"
+
+echo ""
+echo "Done. circuit_toolkit is now available inside KiCad's Python."
+echo "Use ./tools/kicad-python to run scripts with pcbnew access."