feat: Week 1 complete - Linux support + IPC API prep

🎉 Major v2.0 rebuild kickoff - Week 1 accomplished!

## Highlights

### Cross-Platform Support 🌍
- ✅ Linux primary platform (Ubuntu/Debian tested)
- ✅ Windows fully supported
- ✅ macOS experimental support
- ✅ Platform-agnostic path handling (XDG spec)
- ✅ Auto-detection of KiCAD installation

### Infrastructure 🏗️
- ✅ GitHub Actions CI/CD pipeline
- ✅ Pytest framework with 20+ tests
- ✅ Pre-commit hooks (Black, MyPy, ESLint)
- ✅ Automated Linux installation script
- ✅ Enhanced npm scripts

### IPC API Migration Prep 🚀
- ✅ Comprehensive migration plan (30 pages)
- ✅ Backend abstraction layer (800+ lines)
- ✅ Factory pattern with auto-detection
- ✅ SWIG backward compatibility wrapper
- ✅ IPC backend skeleton ready

### Documentation 📚
- ✅ Updated README (Linux installation)
- ✅ CONTRIBUTING.md guide
- ✅ Linux compatibility audit
- ✅ IPC API migration plan
- ✅ Session summaries
- ✅ Platform-specific config templates

## Files Changed

- 27 files created
- ~3,000 lines of code/docs
- 8 comprehensive documentation pages
- 20+ unit tests
- 5 abstraction layer modules

## Next Steps

- Week 2: IPC API migration (project.py → component.py → routing.py)
- Migrate from deprecated SWIG to official IPC API
- JLCPCB/Digikey integration prep

🤖 Generated with Claude Code
https://claude.com/claude-code

Co-Authored-By: Claude <noreply@anthropic.com>

config/claude-desktop-config.json

@@ -0,0 +1,14 @@
+{
+  "mcpServers": {
+    "kicad_helper": {
+      "command": "node",
+      "args": ["dist/index.js"],
+      "cwd": "c:/repo/KiCAD-MCP",
+      "env": {
+        "NODE_ENV": "production",
+        "PYTHONPATH": "C:/Program Files/KiCad/9.0/lib/python3/dist-packages"
+      },
+      "description": "KiCAD PCB Design Assistant"
+    }
+  }
+}

config/default-config.json

@@ -0,0 +1,9 @@
+{
+  "name": "kicad-mcp-server",
+  "version": "1.0.0",
+  "description": "MCP server for KiCAD PCB design operations",
+  "pythonPath": "",
+  "kicadPath": "",
+  "logLevel": "info",
+  "logDir": ""
+}

config/linux-config.example.json

@@ -0,0 +1,16 @@
+{
+  "mcpServers": {
+    "kicad": {
+      "command": "node",
+      "args": ["/path/to/kicad-mcp/dist/index.js"],
+      "cwd": "/home/user/kicad-mcp",
+      "env": {
+        "NODE_ENV": "production",
+        "PYTHONPATH": "/usr/lib/kicad/lib/python3/dist-packages",
+        "LOG_LEVEL": "info"
+      },
+      "description": "KiCAD PCB Design Assistant",
+      "transportType": "stdio"
+    }
+  }
+}

config/macos-config.example.json

@@ -0,0 +1,16 @@
+{
+  "mcpServers": {
+    "kicad": {
+      "command": "node",
+      "args": ["/Users/username/kicad-mcp/dist/index.js"],
+      "cwd": "/Users/username/kicad-mcp",
+      "env": {
+        "NODE_ENV": "production",
+        "PYTHONPATH": "/Applications/KiCad/KiCad.app/Contents/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages",
+        "LOG_LEVEL": "info"
+      },
+      "description": "KiCAD PCB Design Assistant",
+      "transportType": "stdio"
+    }
+  }
+}

config/windows-config.example.json

@@ -0,0 +1,16 @@
+{
+  "mcpServers": {
+    "kicad": {
+      "command": "C:\\Program Files\\nodejs\\node.exe",
+      "args": ["C:/path/to/kicad-mcp/dist/index.js"],
+      "cwd": "C:/path/to/kicad-mcp",
+      "env": {
+        "NODE_ENV": "production",
+        "PYTHONPATH": "C:/Program Files/KiCad/9.0/lib/python3/dist-packages",
+        "LOG_LEVEL": "info"
+      },
+      "description": "KiCAD PCB Design Assistant",
+      "transportType": "stdio"
+    }
+  }
+}