chore: Ralph onboarding - Update .gitignore and add MCP configuration

.gitignore

@@ -150,8 +150,14 @@ tools/
 # BenchmarkDotNet artifacts
 BenchmarkDotNet.Artifacts/
 
-# VS Code settings
-.vscode/mcp.json
-
 # Auto-generated package version file for playground
-src/ReferenceCop.Package/package-version.txt
+src/ReferenceCop.Package/package-version.txt
+
+# Ralph autonomous agent files
+scripts/ralph/
+prd.json
+progress.txt
+archive/
+
+# Claude Code local settings
+.claude/settings.local.json

.mcp.json

@@ -0,0 +1,11 @@
+{
+  "mcpServers": {
+    "github": {
+      "command": "npx",
+      "args": ["-y", "@modelcontextprotocol/server-github"],
+      "env": {
+        "GITHUB_PERSONAL_ACCESS_TOKEN": "${GITHUB_PERSONAL_ACCESS_TOKEN}"
+      }
+    }
+  }
+}

.vscode/mcp.json

@@ -0,0 +1,8 @@
+{
+  "servers": {
+    "github": {
+      "type": "http",
+      "url": "https://api.githubcopilot.com/mcp/"
+    }
+  }
+}