feat(companion): add Electron presentation layer with React UI, IPC handlers, and automation POC

tsconfig.electron.json

@@ -0,0 +1,25 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "commonjs",
+    "target": "ES2020",
+    "outDir": "dist/main",
+    "jsx": "react-jsx",
+    "lib": ["ES2020", "DOM"],
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "moduleResolution": "node",
+    "noEmit": false
+  },
+  "include": [
+    "src/apps/companion/main/**/*",
+    "src/apps/companion/renderer/**/*",
+    "src/packages/**/*",
+    "src/infrastructure/**/*"
+  ],
+  "exclude": [
+    "node_modules",
+    "dist",
+    "tests"
+  ]
+}